Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

Electricity, or rather electrical energy costs MONEY. We pay for it when we buy a battery and we pay the electricity BOARD for the electricity that we USE from the mains.

The average electricity bill for a house in a year would probably be about £500, although this very much depends on how the house is heated.

The electricity board measures the electrical energy that we use not in joules but in UNITS CALLED KILOWATT-HOURS

A kilowatt-hour (kWh) is the energy that a one kilowatt appliance uses in one hour

One kilowatt hour = 1000 W x 3600 s

= 1000 x 3600

= 3 600 000 J

HEY mate here is your answer:

Transverse Waves:

• DISPLACEMENT of the medium is perpendicular to the DIRECTION of propagation of the WAVE

• Transverse Waves Can travel in solids, but not in liquids and gas.

• eg. ELECTROMAGNETIC radiation

Longitudinal Waves:

• Displacement of the medium is parallel to the direction of propagation of the waves
• Longitudinal Waves Can travel through all states of matter.

• eg. Sound waves

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Answer:

microphone is totally diff from LOUDSPEAKER

microphone is used to record voice but loudspeaker is used to listen something

microphone is very slow but loudspeaker produce a very LOUD sound

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ANSWER:

heat conductors are those which transfers heat from one position to another position by the activity of conduction, convection or by radiation are conductors of heat... but heat insulators are not CAPABLE of doing this.

Explanation:

conduction is the TRANSMISSON of heat in solid . convection is transfer of heat in liquid and radiation is TRANSMISSION of heat in VACCUM

ANSWER:

Please attach an image of it and please don't be lazy GO don't ur HOMEWORK thanks only ask SPECIFIC questions you don't know.

ANSWER:

FIRST BLANK should be GRAVITY

the SECOND should be FRICTION of air

Explanation:

Answer:

Self-Induction

1. Self-Induction is the characteristic of the coil itself.

2. When the main current in the coil decreases, the INDUCED current opposes the decay of current in the coil.

3. When the main current in the coil increases, the induced current opposes the growth of current in the coil.

MUTUAL Induction

1. Mutual induction is the characteristic of a PAIR of coils.

2. When the main current in the coil decreases, induced current developed in the neighbouring coil opposes the decay of current in the coil.

3. When the main current in the coil increases, The induced current developed in the neighbouring coil opposes the growth of current in the coil

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Answer:

Friction is a contact force that always acts against the direction of motion

The ball EXPERIENCES a CONSTANT force against its direction of motion as it MOVES. Thus it continues to LOOSE its velocity and stops

Explanation:

ANSWER:

mass can CHANGED into ENERGY and energy can be CONVERTED into mass.

this theory was given by Elbert Einstein

mathematically.

E=mc^2

ANSWER:

In the SIZE of NUCLEUS is should be 10^-15 so the size of ATOM WOULD be 10^-10

TYPES of VECTORS

Zero Vector. We know that all vectors have INITIAL and terminal points. ...

Unit Vector. A Unit vector is a vector having a magnitude of unity or 1 unit. ...

Coinitial Vectors. Coinitial vectors are two or more vectors which have the same initial point. ...

Collinear Vectors. ...

Equal Vectors. ...

NEGATIVE of a Vector.

EXPLANATION:

re=(f-32)/2.25 is the FORMULA of reaumer

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Answer:

800 GRAMS in ONE LITRE and 1 kg is equally in 1000 grams

Answer:

as we know that DISPLACEMENT is refer as path FOLLOWED by biker so here INSPITE of covering same distance the displacement is DIFFERENT because the path followed is different

Solution :-

As provided :-

Initial velocity = 50 m/s

FINAL Velocity = 0

Distance covered = 250

Now as Initial velocity , Final Velocity and the distance is provided.

So we can use the motion equation :-

v² = u² + 2aS

So by REPLACING values :-

0² = (50)² + 2A(250)

→ 0 = 2500 + 500a

→ -2500 = 500a

→a = (-2500) ÷ 500

→a = -5 m/s²

So our ACCELERATION = -5 m/s²

Or RETARDATION

Answer:

It states that like charges repel and opposite charges attract with a force proportional to the product of the charges and inversly proportional to the square of the distance between them

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ANSWER:

0.5 VOLTS is the answer of your QUESTION

Answer:

HEY

HERE IS YOUR ANSWER:::::

The key difference between controlled and uncontrolled chain reactions is that controlled chain reactions do not lead to any explosive effects whereas uncontrolled chain reactions lead to explosive energy release.

:::Controlled vs Uncontrolled Chain Reaction::::::

(1)A controlled chain reaction is a chain of nuclear reactions that take PLACE SUBSEQUENTLY under controlled conditions.

An uncontrolled chain reaction is a chain of nuclear reactions that take place subsequently, but not under controlled conditions. 

__________________________________

(2) Components::::A controlled chain reaction is CARRIED out in the presence of MODERATORS.

An uncontrolled chain reaction is carried out in the absence of moderators.

__________________________________

(3) Control Measures::::A nuclear chain reaction is converted into a controlled chain reaction via regulating the amount of fissile isotopes present, reducing the time of reaction and using moderators.

An uncontrolled chain reaction has no control measures.

__________________________________

(4) Applications::::Controlled chain reactions are used in nuclear power plants to generate electricity.

Uncontrolled chain reactions are used in nuclear bombs.

Explanation:

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Explanation:

an AREA around a MAGNET or MATERIALS that behave like a magnet, where there is a force that will ATTRACT some metals towards it

Explanation:

KYLE's Converter > TEMPERATURE > DEGREES Reaumur > Degrees Reaumur to Degrees Fahrenheit. 1 Degree Reaumur: The Réaumur temperature scale is set with the freezing point of water at 0 °Ré and the BOILING point of water at 80 °Ré. 1 °Ré is roughly equal to 274.4 °K (SI Unit).

YOUR ANSWER IS IN THE ATTACHMENT....

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ANSWER:

(a)

(i)Angle of incidence = 90-30 = 60°

(ii)Angle of refraction = 90-45 = 45°

(b) u(liq RELATIVE to air ) = √(3/2)

EXPLANATION:

(b) using Snell's LAW ,

u(air) x SIN(60°) = u(liq) x sin(45°)

=> u(liq)/u(air) = sin(60°)/sin(45°)

=> u(liq)/u(air) = √3/2 x √2

=> u(liq relative to air) = √6/2 or √3/√2 or √(3/2) ...

ANSWER:

heya❣❤✌ here is your answer

v=u+at

ANSWER:

A body is said to be positively charged when it looses electrons nd transfer it to the other body

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I THINK 1 D is the CORRECT ANSWER.

ANSWER:

Copper-wire................

Answer:

MUSCULAR Force

Explanation:

MEANS if a man is APPLYING a force to strech someting is a KIND of muscular force

ANSWER:

for ACCLERATION USE FORMULA v-u/t

EXPLANATION:

ANSWER is 20m/s

SOLUTION is in the ATTACHED PIC ...

Answer:

Explanation:The ENERGY given to each COULOMB of charge is equal to the AMOUNT of work which is done in moving it.

Now we know that

Potential difference =

∴ Work done = Potential difference × charge

Where, Charge = 1 C and Potential difference = 6 V

∴ Work done = 6×1

= 6 Joule.

Explanation:

Perhaps you WANT to FIND the MASS of the CUBOID.

If so then,

The laplace TRANSFORM of the HALF-WAVE rectified SINE wave is as follows:

• The half wave rectified sine curve is represented as :

        f (t) = {  SINT          :(2n+1) π ≤ t ≤ (2n+2) π

                     0             :2nπ ≤ t ≤ (2n+1)π    }

• Thus, the Laplace transform of f(t) will be :

Answer:

GIVEN that: V= 25V

R= 30ohm

I= ?

according to ohms LAW

V = IR

I = V/R

I = 25/30

= 0.83A

b) the graph of non ohmic MATERIAL is increasing because the RESISTANCE of ohmic material will be INCREASE

their graph

mascular FORCE is UR ANSWE...!!

Answer:

hey MATE here your answer

Explanation:

the least COUNT of VERNIER is (0.1mm)

ANSWER:

DISTANCE 100+25 =125

Displacement=75

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ANSWER:

CURRENT of 1200MA flows through a 4KΩ resistor what is PD ACROSS the resistor

Explanation:

300V

Answer:

hat is the formula for calculating REACTION time?

Easy METHOD: Calculate the reaction distance

Formula: Remove the last digit in the speed, multiply by the reaction time and then by 3.

Example of CALCULATION with a speed of 50 km/h and a reaction time of 1 second:

Formula: d = (s * R) / 3.6.

d = reaction di

Answer:

Answer : Aims of preparing diet for sports person : Maintaining body weight and body composition desired for that SPECIFIC sport. Maintaining adequate pool of nutrient levels in the body. Adopting healthy NUTRITIONAL PRACTICES during training and COMPETITION.

Answer:

a force that acts on a moving BODY in the DIRECTION of a tangent to the CURVED PATH of the body.

ANSWER:

LARGEST CUE -€

smallest value℅

Answer: HOPE THIS ANSWER HELPS YOU....IF IT DID MARK AS BRAINLIEST❤️

Explanation:

a) when a car is moving at a constant speed and the DRIVER accelerates the car the speed of car increases bcoz force was applied to the acceleration peddle.

b) similarly when a car needs to stop the driver APPLIES force on the brake peddle which leads the speed of car to decrease ultimately BRINGING it to rest.

c) when a person is playing football he CONSTANTLY keeps kicking the ball by applying force from his foot and when near the goal he KICKS the ball hard which changes its speed.

ANSWER:

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Answer:

Circular motion is a special CASE of curvilinear motion where the object MOVES AROUND a fixed POINT in a circular (closed) path

ANSWER:

the DISTANCE between CANDLE and it's IMAGE is 15

Answer:

HEYA mate there's your answer

Force PER area is called as pressure.

P=F/A

hope it HELPS you

THANK you

ANSWER:

EXPLANATION:

A BODY is moving along a circular path of radius r. What will be the distance and displacement of the body when it COMPLETES half a revolution? When it completes half a revolution, Distance traveled/Pathlength will be EQUAL to half of the circumference of the circle.

Answer:

A force must be applied on a body to accelerate an object. Work must be done in order to apply a force. The body will move with an unvarying speed after the work has been done due to the energy provided by it. The speed and the mass of the body are factors on which the energy transfer that makes up the kinetic energy depends.

Just like all forms of energy, Kinetic energy too can be transformed into other forms of energy and transmitted amongst objects. For instance, a moving car may hit a stationary person and then the kinetic energy of the car gets transferred into the person’s body.

How to Calculate Kinetic Energy?

To simply put, Kinetic energy can be calculated by the BASIC process of computing the work (W) that is done by a force (F). If the body has a mass of m that was pushed for a distance of d on a surface with a force that’s parallel to it.

W=F.d=m.a.d

The acceleration in this equation can be substituted by the initial (vi) and final (vf) velocity and the distance. This we get from the kinematic equations of motion.

W=m.a.d=m.d.v2f−v2i2d=m.v2f−v2i2d=12.m.v2f−12.m.v2i

The Kinetic Energy’s (K) basic quantity ½mv2 changes when a particular sum of work is ACTED upon an object.

K.E=12mv2

The total work that is done on a system is equivalent to the change in kinetic energy. Thus,

Wnet=ΔK

This equation is known as the work-energy theorem and has large applications EVEN if the forces applied varies in magnitude and direction. This FACTOR is an important one in the concept of conservation of energy.

Examples of Kinetic Energy

A semi truck travelling down the road has more kinetic energy than a car travelling at the same speed because the truck’s mass is much more than the car’s.

A river FLOWING at a certain speed comprises kinetic energy as water has certain velocity and mass.

Answer:

Explanation:

You can use physics to determine the force of GRAVITY on an object that moves along an inclined plane. You can break the weight of the object down into components that are parallel to and PERPENDICULAR to the plane. The component perpendicular to the plane PRESSES the object into the SURFACE of the plane