Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

As the ALTITUDE increases the ATMOSPHERIC PRESSURE decrease. And the air becomes thinner and there will be very less oxygen at high altitude. So DUE to which the blood vessels present inside our their nose bursts and starts bleeding. This is why MOUNTAINEERS suffer from nose bleeding.

Answer:26.79% efficient

Explanation:

ASSUMING you have this question for Carnot cycle/engine,

the formula for calculating efficiency of a carnot engine is

=> Efficiency = {1- (T1/T2)}*100

Where T1 is temperature of cold BODY and T2 is temperature for hot body(both in KELVIN).

Here cold temperature T1 is 0°C = 273.15K

And hot temperature T2 is 100°C = 373.15K

Thus efficiency = {1-(273.15/373.15)}*100

=> 0.267988*100

=> 26.7988%

The efficiency for this engine is 26.79%

No a carnot cycle/engine can never be 100% efficient as to be 100% efficient, the SINK temperature should be 0K to infinite which are not POSSIBLE to achieve.

ANSWER:

same in all cases

Explanation:

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Answer:

5×10^9 erg.

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ANSWER:

I don't KNOW

SORRY BROO

Answer:

What is frequency modulation, FM? To generate a frequency MODULATED SIGNAL, the frequency of the radio carrier is CHANGED in line with the amplitude of the incoming audio signal. When the audio signal is modulated onto the radio frequency carrier, the new radio frequency signal MOVES up and down in frequency.

Answer:

The answer to this question is = 1 N

Explanation:

Given:

r = x

F = 16 N

F = k*Q1*q2/r²

Here the F1 is the force when distance = x

F1 = k*q1*q2/x². (1)

Here F2 is the force when dictance = 4x

F2 = k*q1*q2/(4x)²

F2 = k*q1*q2/16x²

F2 = 1/16 *[ k*q1*q2/x²]. (2)

Substitute the VALUE of (1) into (2)

We get

F2 = 1/16 * F1

F2 = F1 / 16

Substitute the value of F1 = 16 N

F2 = 16 N / 16

F2 = 1 N

I HOPE IT WILL HELP YOU.

ANSWER:

The answer to this question is

(i) - (E)

(II) - (a)

(iii) - (b)

(iv) - (c)

(v) - (d)

(VI) - (f)

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EXPLANATION:

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Answer:

A unit is an internationally accepted standard for measurements of quantities. Measurement consists of a numeric quantity along with a relevant unit. Units for Fundamental or base quantities (like length, time etc.) are called Fundamental units............The word unit as used in physics refers to the standard MEASURE of a quantity. Some fundamental quantities and their RESPECTIVE units are: time —- second. MASS —- kilogram. length —- meter..............A unit is any standard used for making comparisons in measurements. Unit conversions allow for measurements of a property that have been recorded USING different units—for instance, centimeters to inches............

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The MOVEMENT of simple PENDULUM is to and fro MOTION. By which it moves from particular to particular.

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For ANSWERING this problem, you may need to know the direct result for TIME of fall of an object

It is t=2Hg−−−−√

Where symbols have their usual meaning

You may also take out this result by putting

v=2gH−−−−√ and u=0 in the first EQUATION of kinematics.

So for 1ST object

t1=2H1g−−−−√(1)

And for 2ndobject

t2=2H2g−−−−√(2)

Dividing 1 by 2

t1t2=2H1g−−−−√2H2g−−−−√

HENCE

t1t2=H1H2−−−√

Answer:

3

Explanation:

The soft iron core increases the strength of the MAGNETIC field inside a TRANSFORMER. The main purpose of USING an iron core in a transformer because iron is a magnetic material and it is EASILY available everywhere. The core is laminated to REDUCE the Eddy current and hence Eddy current losses

ANSWER:

(a)SPEED.

.

.

.

.

.

.

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Answer:

more MAGNETIC PINS attracts TOWARDS the POLES

ANSWER:

Faraday's law of induction (briefly, Faraday's law) is a basic law of electromagnetism predicting how a magnetic field will interact with an electric circuit to produce an electromotive force (EMF)—a phenomenon as electromagnetic induction........Faraday's law states that the absolute value or magnitude of the circulation of the electric field E around a closed loop is equal to the rate of change of the magnetic flux through the AREA enclosed by the loop. The equation below expresses Faraday's law in mathematical form.When an emf is generated by a change in magnetic flux according to Faraday's Law, the polarity of the induced emf is such that it produces a current whose magnetic field OPPOSES the change which produces it. The induced magnetic field INSIDE any loop of wire always ACTS to keep the magnetic flux in the loop constant..............

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EXPLANATION:

Showing results for the function of choke Fluorescent lamp

Search instead for the function of choke Flourtent lamp

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Featured snippet from the web

The purpose of the choke is to provide a very high voltage INITIALLY between the FILAMENTS (across the two ends of the tube light). Again once the gas in the tube is IONIZED the choke provides a low voltage. A choke is a coil of wire. Fluorescent tubes/lamps are filled with mercury vapor

Answer:

HEY dude...this is not necessary ALWAYS...general MEANS of frame of reference is in which PERSPECTIVE you are making the observation....that is all..

hope it will help you...

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Explanation:

Given that:-

( FINAL VELOCITY) v = 54km/h = 15 m/s

(Initial velocity) u= 0m/s

Time = 5 sec

Acceleration = v-u /t

= 15-0 / 5

= 15 / 5

= 3 m/s²

Here, is your answer.

ANSWER:

i DONT KNOW pysics sry

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ANSWER:

are merko follow kerke jana AISE MT jana bar PLEASE

ANSWER :

It is easier to ROLLING down a carpet from on an inclined plane then to drag carpet on it.

Step -By -Step -ExplanatioN :

As we ROLL down the carpet the Gravitational force attract the carpet to the down from the inclined plane as we apply force on it. And the rolling Friction became too less then the force applied and less from the gravitational force itself.

And the rolling friction act in DIFFERENT direction as of Gravitational force and force applied. So, we require less force.

And whereas when we drag the carpet on the inclined plane. Gravitational force opposes the direction of the force applied. And also the gravitational force as well rolling force will be opposite in direction of force applied. So, we have to apply more force.

So, it is easier to rolling down a carpet from inclined plane then to drag carpet on it.

ANSWER:

here is your GRAPH

ANSWER:

negative of velocity is REPRESENTED by[-m/s]

Explanation:

when its MOTION is in the negative direction

ANSWER:

Explanation:

1 MIN = 60 SEC

600m/min

600m/60sec

10m/sec

ANSWER:

EXPLANATION:

From metals high COEFFICIENT of thermal expansion has, for example, aluminium: about 22x10-6K-1, with an E-modulus of about 70 GPA. Austhenitic STAINLESS steels also have quite high coefficient of thermal expansion of approx. 17x10-6K-1 with an E-modulus of approx. 200 GPa

ANSWER:

RIGHT answer of this QUESTION is == brownian MOVEMENT

Answer:

The answer to this question is = 4 ohm

Explanation:

Given:

R1 = R2 = R3 = R4 = R5 = 2 ohm

The effective resistance of 1ST pair of resistors connected in PARALLEL =

1/R = 1/R1 + 1/R2

1/R = 1/2 + 1/2

1/R = 1/1

R = 1 ohm. (1)

The effective resistance of 2nd pair of resistors

connected in parallel =

1/R = 1/R3 + 1/R4

1/R = 1/2 + 1/2

Similarly R = 1 ohm (2)

Total resistance in the circuit =

R(1) + R(2) + R5

= 1 + 1 + 2 = 4 ohm

Therefore The effective resistance of the circuit

= 4 ohm

I HOPE IT WILL HELP YOU.

For solving the nonlinear differential EQUATION of the pendulum, here we adopt a method that transforms the nonlinear differential equation into an EQUIVALENT linear one and then evaluate the period oscillation. We also apply the energy conservation principle to find the dependence of the time period on the amplitude of oscillation. Also HARMONIC balance method is applied to find an expression for the period of oscillation. THEORETICAL curves, simulation results and experimental results are given in support of the FINDINGS. Nonlinear method 1 proves that the pendulum oscillation is periodic but it has also very small amount of third harmonic. FFT analysis has been carried out of the data as obtained from the simulation results and it is found that system is almost free from harmonic distortion.

Mohan brnlst

Answer:

Explanation:

1.

one kilogram -force is the force due to gravity on a mass is 1 kg = mass of 1kg * acceleration due to gravity (g) m/s2.

Since the average value of g is 9.8 m/ s2.

SI unit of force is NEWTON

2.

A major difference between tangential acceleration and centripetal acceleration is their DIRECTION. Centripetal means “center seeking”. Centripetal acceleration is always directed inward. ... Tangential acceleration results from the change in magnitude of the tangential velocity of an object.

3.

The passengers of a boat are not allowed to stand because: ... this will raise the centre of gravity and the boat will be rocked. B2. this will lower the centre of gravity and the boat will be rocked.

4.

static equilibrium means the resultant force is zero and the object is not moving.

EXAMPLES are: an object (e.g book) lying STILL on the surface (e.g table). no resultant moment about a pivot, so clockwise moment equals anticlockwise moment and there is no resultant force and no motion either.

An example of dynamic equilibrium is a book sliding straight down along an inclined plane with a constant speed. The three forces acting on the book, gravitational force, kinetic frictional force and normal force, all add to give a zero net force and the object is sliding down the incline at a constant speed.

Answer:

EXPLANATION:

The spontaneous emission of radiations from an unstable nuclei is KNOWN as natural RADIOACTIVITY.

on the other hand, The process of emission of radiations from naturally OCCURRING isotopes when they are bombarded with sub-atomic particles or high levels of X-RAYS or gamma rays called artificial radioactivity.

ANSWER:

yes....

because momentum will be only when BODY has both mass and velocity....

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ANSWER:

hey mate here is the answer

banking is necessary for a curved road? Banking of road is the process of raising outer edges of a road over its inner edge through certain angle.

banking is necessary for a curved road? Banking of road is the process of raising outer edges of a road over its inner edge through certain angle.When a vehicle moves on a curved horizontal surface, friction FORCE between wheels and road PROVIDES the necessary CENTRIPETAL force.

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Answer:

Let u be the initial velocity and h be the maximum height attained by the stone.

V

1

2

=u

2

−2gh,

(10)

2

=u

2

−2×10×

2

h

100=u

2

−10h ....(i)

Again at height h,

v

2

2

=u

2

−2gh

(0)

2

=u

2

−2×10×h

u

2

=20h ... (II)

So, from Eqs. (i) and (ii) we have

100=10h

h=10m

ANSWER:

..................5m/s2

v=u+a*t

0=25+(a*5)

-25=5*a

a=-5m/s2

negative SIGN SHOW the RETARDATION here

ANSWER:

Your answer is not GIVEN PROPERLY

But I have TRIED

Answer:

• The VALUE of | a - b | is 10 units.

Given:

1. Vector (a) = 6 units.
2. Vector (b) = 8 units.
3. Angle (θ) = π / 2

Explanation:

From the formula we know,

⇒ | a - b | = √ a² + b² - 2 a b cosθ

Where,

• a & b Are vectors.
• θ Denotes the angle between them.

Now,

⇒ | a - b | = √ a² + b² - 2 a b cosθ

Substituting the values,

⇒ | a - b | = √ (6)² + (8)² - 2 × 6 × 8 × cos(π/2)

In USUAL we take,

⇒ π = 180°

∴ π / 2 = 90°

⇒ | a - b | = √ (6)² + (8)² - 2 × 6 × 8 × cos 90°

⇒ | a - b | = √ (6)² + (8)² - 2 × 6 × 8 × 0

∵ [ cos 90° = 0 ]

⇒ | a - b | = √ (6)² + (8)² - 0

⇒ | a - b | = √ (6)² + (8)²

⇒ | a - b | = √ 36 + 64

⇒ | a - b | = √ 100

⇒ | a - b | = 10

⇒ | a - b | = 10

∴ The value of | a - b | is 10 units.

DUE to the ATMOSPHERIC REFRACTION all AROUND us✌️

ANSWER with EXPLAINATION:

In balanced forces, the magnitude of the two forces is equal, whereas, in the case of unbalanced forces, the magnitude of the two forces are unequal. In balanced forces, the two INDIVIDUAL forces act in opposite direction. Conversely, in unbalanced forces, the individual forces EITHER act in same or opposite direction.

ANSWER:

15.7 m/s is the answer of this QUESTION

ANSWER:

SORRY I'm in 5thstandard

ANSWER:

The main DIFFERENCE between solenoid and toroid is that the solenoid is CONSIDERED as the straight coil and the toroid is the bent solenoid which is having ring or doughnut shape.In toroid due to the ring shape the magnetic field is much STRONGER than solenoid at its center.

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Answer:

celsius, and can only be stored for a limited TIME at room temperature. As SOON as the ice is HEATED to 0 deg. or above, the ice will melt into liquid WATER. Liquid water coming into contact with ice will be cooled, and if cooled below 0 deg. it will also freeze

Explanation:

HOPE it will help you

Answer:

VFDs

Explanation:

When VFDs are USED, the drive is SUPPLIED from the power network, and the motor is supplied from the drive. VFDs CONTROL the motor SPEED and motor torque by controlling the frequency and magnitude of VOLTAGES and currents supplied to the motor

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ANSWER:

HOPE you UNDERSTAND that

ANSWER:-kq/2a^2

Explanation:the equal and DIAGONALLY opposite POSITIVE charges will cancel eachothers effect, hence the field generated will occur only due to the  negative CHARGE which will be equal to -kq/[sqrt{2}a]^2

Explanation:

27C is 300.15 degrees above absolute zero or 300.15K. Quadrupling that TEMPERATURE is 1200.6K. Subtract 273.15 to get back to CELSIUS and that brings us to 927.45 C. Notice that CALCULATING the ACTUAL speed of sound was not necessary.

Answer:

2.2v

Explanation:

the potential STORAGE in cell=2.2v

when an circuit is OPEN no current flow

so PO. diff =2.2v

Answer:

1. In circular motion, VELOCITY is tangentical to the circular path.

two examples

1an artificial satellite ORBITING the Earth at constant height,

2. a stone which is tied to a ROPE and is being SWUNG in circles,