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What Question SAYS ?

Here, it is asked that why the electric appliances in household circuit should not be connected by using series combination connection.

Answer :

★ Electrical appliances at home mainly connected in parallel.

★ It is because, in parallel connections, same voltage appears across each appliance.

Disadvantages of a series circuit :

Since the same current flows throughout the series circuit, electrical devices operating at different current ratings cannot be connected in it.

When one component fails, the circuit is broken and NONE of the components work.

The advantages of connecting electrical appliances in parallel with the BATTERY, instead of connecting them in series :

A parallel circuit divides the current through the electrical gadgets.

THEREFORE, it is POSSIBLE to connect electrical devices operating at different current ratings to the same voltage source.

When one devices fails, the circuit is not broken and other components keep working.

Hence, that is why parallel connection is more convenient than that of series one.

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Superconductors are MATERIALS that exhibit zero (or close to zero) RESISTANCE to electrical currents as well as perfect diamagnetism (the Meissner Effect). When a current is started in a superconducting loop, it persists for a very long time without an applied potential difference.

ong>NEWTON's second law of motion states that, "The rate of change of momentum of a body is directly PROPORTIONAL to the APPLIED force and takes place in the direction in which force acts". Now, momentum is the product of mass and velocity. Thus, change in momentum is. Thus, we have. But, is the acceleration of the body.

The Third Law

The Third LawIt asserts that "If body A exerts a force on body B, then B exerts a force of equal size and opposite direction on A." It can be written: FAB = – FBA. If that point or interface is treated as a "body" of mass ZERO, then Newton's second law tells us that Fnet = 0a, so Fnet = 0.

Derived QUANTITIES are quantities that are calculated from two or more measurements. Derived quantities cannot be MEASURED DIRECTLY. They can only be computed. Many derived quantities are calculated in physical science. Three examples are area, volume, and density.

ong>Answer:

PLEASE mark brainlist option c is correct

Explanation:

The Angle of Deviation is the angle equal to the difference between the angle of incidence and the angle of refraction of a ray of light passing through the surface between one medium and another of different refractive index. Example: A prism has a refractive index 23 and refracting angle 90o.From the equation mentioned above, we can UNDERSTAND that angle of deviation (δ) is the angle between the incident ray and emergent ray. THEREFORE, option D is the correct answer. Note: The minimum value of angle of deviation suffered by a ray on passing through a prism is called an angle of minimum deviation.

A FORCE is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with MASS to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a PULL. A force has both MAGNITUDE and direction, making it a vector QUANTITY.

BRO USE this app for proper purpose

Explanation:

hope it's helpful to you

ong>EXPLANATION:

i think it WOULD HELP you

Acceleration.

hope it HELPS you

ADVERTISING helps a business to earn profits by enabling more people to know about the products and services and thus RESULTING in more SALES. The consumers on the other hand will never get to know about the products and services if they are not advertised.

what is your FAVORITE COLOR and

For the lens in air

fa1=(aμg−1)[R11−R21]

⇒151=(1.5−1)[R11−R21]

⇒152=R11−R21

When the lens is immersed in water

fw1=(aμwaμg−1)[R11−R21]

⇒fw

use this FORMULA and solve question

ong>ANSWER:

Difficulties in physics:-

• it's all of equations , I hate them.
• there are so MANY laws, WISH there should be only one.
• less words more mathematics.
• so many formulas of every LITTLE THING.

ong>Answer:

The average resistance force is 10000 N.

Explanation:

Given : A bullet of mass 25G moving with a speed 200 m/s is stopped within 5 cm of the TARGET.

To find : What is average resistance force offered by the target?

Solution :

The mass of the bullet is 25 g.

The initial VELOCITY of the bullet is u=200 m/s.

The FINAL velocity is v=0 m/s.

The distance covered is 5 cm.

Into m, 5 cm=0.05 m.

First we find the acceleration.

Using formula,

2as=v^2-u^22as=v

2

−u

2

Substitute the values,

2a(0.05)=0^2-200^22a(0.05)=0

2

−200

2

0.1a=-400000.1a=−40000

a=-\frac{40000}{0.1}a=−

0.1

40000

a=-400000m/s^2a=−400000m/s

2

CONVERTING mass into kg,

25 g= 0.025 kg.

Now, The average resistance force offered by the target is

F=m\times aF=m×a

F=0.025\times 400000F=0.025×400000

F=10000F=10000

Therefore, The average resistance force is 10000 N.

ong>Answer:

90m/s

Explanation:

m1.u1+m2u2=m1.v1+m2.v2

and as it's STARTING from rest the LHS will be zero andnow put the other VALUE in the RHS

3×60+2×X

=180+2X

180=2X

X=180/2

=90M/S

ong>Answer:

the gravational force BW two BODIES does not depends on MEDIUM which bodies are PRESENT

ong>Answer:

Momentum can be defined as "MASS in motion." All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. Momentum depends UPON the variables mass and velocity. In terms of an equation, the momentum of an object is EQUAL to the mass of the object TIMES the velocity of the object.

one NANO Couloumbs an ELECTRIC POTENTIAL

ong>Answer:

which CLASS is this

I am in 6 so that's why I don't KNOW

We know that m = v/u

magnified image = 2m

2 = v/u

v = 2u [1]

By USING the mirror formula

1/f = 1/u + 1/v

1/f = 1/v - 1/u

1/20 = 1/2u - 1/u

1/20 = 1 - 2/2u

1/20 = -1/2u

u = -10 cm

v = 2(-10) = -20 cm

ong>Answer:P>

18

Explanation:

p PLEASE mark it BRAINLIESST

ong>ANSWER:

All the BEST

Explanation:

Please check it

All the best DEAR

ong>ANSWER:

In nuclear physics and nuclear chemistry, a nuclear reaction is semantically considered to be the process in which two nuclei, or a nucleus and an external subatomic particle, COLLIDE to produce one or more new nuclides. Thus, a nuclear reaction must CAUSE a TRANSFORMATION of at least one NUCLIDE to another.

oooo this is a INTERESTING QUESTION

ong>Explanation:

सरल आवर्त गति (SIMPLE harmonic MOTION / SHM) उस गति को कहते हैं जिसमें वस्तु जिस बल के अन्तर्गत गति करती है उसकी दिशा सदा विस्थापन के विपरीत एवं परिमाण विस्थापन के समानुपाती होता है। उदाहरण - किसी स्प्रिंग से लटके द्रव्यमान की गति, किसी सरल लोलक की गति, किसी घर्षणरहित क्षैतिज तल पर किसी स्प्रिंग से बंधे द्रव्यमान की गति आदि।

एकविमीय सरल आवर्त गति के लिये गति का समीकरण न्यूटन के द्वितीय नियम तथा हुक के नियम की सहायता से निकाला जा सकता है। यह समीकरण द्वितीय कोटि वाला, नियत गुणाकों वाला, साधारण अवकल समीकरण है।

{\displaystyle F_{net}=m{\frac {\mathrm {d} ^{2}x}{\mathrm {d} t^{2}}}=-kx,}{\displaystyle F_{net}=m{\frac {\mathrm {d} ^{2}x}{\mathrm {d} t^{2}}}=-kx,}

This answer MAY be HELP you

ong>Answer:

Hii,

Explanation:

A MECHANICAL EQUILIBRIUM exists when all the mechanical forces within a system are balanced so that there is no acceleration. ... For a system to be in THERMODYNAMIC equilibrium it should be in mechanical, thermal, phase and CHEMICAL equilibrium.

Hope it will help you..

# XxGoodBoixX ❤️

ong>Answer:

In nuclear physics and nuclear CHEMISTRY, a nuclear reaction is semantically CONSIDERED to be the process in which two nuclei, or a nucleus and an EXTERNAL subatomic particle, collide to produce one or more NEW nuclides. Thus, a nuclear reaction must cause a transformation of at least one nuclide to another

Explanation:

mark as brainlist

ong>ANSWER:

POWER of heat 1000w

Explanation:

it's CORRECT

ong>Answer:

Standing waves can be found in MANY real WORLD examples in science and nature. A plucked guitar string is a simple example of a standing WAVE. A plucked string emits a particular SOUND frequency depending on the string length and how taut or dense the string is.

ong>Answer:

DIGESTION in amoeba is intracellular as all the PROCESS is done inside the cell WALL of the the cell.

ong>Answer:

The angle which the tangent make to the free surface of the liquid at the point of contact with the walls of the VESSEL inside the liquid is CALLED the angle of contact, or it is defined as the angle subtended between the TANGENTS drawn at the liquid surface and the solid surface inside.

[5-15]/20=-10/20=-0.5m/s2

Explanation:

NOTE:-

SCROLL RIGHT!

Khadijah21

ong>Answer:

The SIXTH period is called the longest period because it has maximum 32 ELEMENTS.

ong>Explanation:

The BEAT FREQUENCY is the difference in frequency of two WAVES. It is because of constructive and destructive interference. In sound, we hear said beat frequency as the rate at which the loudness of the sound varies whereas we hear the ordinary frequency of the waves as the PITCH of the sound.

This answer may be help you

ong>Answer:

A nuclear electromagnetic pulse (commonly abbreviated as nuclear EMP, or NEMP) is a burst of electromagnetic radiation CREATED by a nuclear explosion. The resulting RAPIDLY varying electric and magnetic fields MAY couple with electrical and ELECTRONIC SYSTEMS to produce damaging current and voltage surges.

hope it helps you

pls mark my answer as brainlist

I = 40 CM, area of cross – section a = 0.1 MM2 = 0.1/100cm2 R = 0.8 Ω

Specific resistance of WIRE p = Ra/l = (0.8/40) × 1/1000

P = 0.00002 Ω – cm

sorry not ABLE to UNDERSTAND

sorry not ABLE to understand

ong>Total number of resistances = n

In case of parallel combination,

or, resultant resistance = r/n

or, x = r/n (since the value of resultant resistance is given n)

or, r = nx

So, the value of each resistances = r = nx

The PROBLEM is not finished! wait (-_^)

For SERIES, resultant resistance = r+r+r+r+r+r+r+ (upto n times) = nr = n×nx (since, r = nx) = n²x [Ans.]

CORRECT answer is (C) xn²

ong>Answer:

I don't know SORRY you ask it to your friends or SOMEONE

ong>Answer:

A rainbow is caused by sunlight and ATMOSPHERIC conditions. Light enters a WATER droplet, SLOWING down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, SEPARATING into its component wavelengths--or colors. When light exits the droplet, it makes a rainbow.

Explanation:

pls MARK me as brainliest

False the RATIO of POTENTIAL difference to ELECTRIC current following through the conductor is resistance.

iquid is the CORRECT OPTION

ong>Answer:

This is your answer

I hope this is HELPFUL for you

ong>Answer:

Tissue is a group of cells that have SIMILAR STRUCTURE and that function TOGETHER as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. This may be ABUNDANT in some tissues and minimal in others.

Mermaids appear in the folklore of MANY cultures worldwide, including the Near East, Europe, Asia, and Africa. In ancient ASSYRIA, the goddess Atargatis TRANSFORMED herself into a mermaid out of shame for accidentally killing her HUMAN lover.