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Solving problems on Laws of Motion

Sir,in solving problems of laws of motion ,is it mandatory to take that direction as +ve in which acceleration acts?(i.e should i subtract other forces acting on a body from the forces that is acting...

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Why gravitational force of attraction is necessary for a satellite to revolve...

The question was posted by Raj Kumar. The satellite has a velocity. To revolve around, the direction of velocity must change. In the absence of a force it can move only in a straight line. It is the...

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Direction of magnetic field due to a current carrying conductor

“How do we know the direction of magnetic field around the current carrying conductor?” Asked Nikhil You may also like: Force on a current carrying conductor in a magnetic field Why is the force on a...

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More problems coming in; Try to answer now!

Stuti posted these: a particle is thrown with  any velocity vertically upward. the distance traveled by particle in last sec of ascent is 1)g 2)g/2 3)g/4 4)cant be calculated a ball is dropped from a...

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Why direct currents aren’t used in Home circuits?

How can an alternating current change its direction while moving in a wire or any conductor? Why direct currents aren’t used in Home circuits? RAHUL ASKED Answer: Alternating current is produced by...

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Motion of a charge particle in an electric field – Numerical Problem

At t=0 a very small object with mass 0.400mg and charge +9.00μC is travelling at 125 m/s in the -x-direction. The charge is moving in a uniform electric field that is in the +y-direction and that has...

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What is the answer if vector A is multiplied with vector B?

In vector multiplication, there are two types of multiplication: One in which the result is a scalar and the other in which the result is a vector. Accordingly the two types of products of vectors are:...

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Restoring force and Newton’s law

We know that whenever a body is deformed a restoring force originates and tries to restore the shape of the body and according to newtons third law of motion whenever a force acts on a body an equal...

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Force on a charged particle

What is the force experienced by a charged particle moving perpendicular to an electric field? I understand that when it is moving parallel to the electric field, it accelerates. (Shrishti asked)...

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LIGHT IS TRANSVERSE

In transverse wave,the particles vibrate perpendicular to the direction of wave propagation. “light is a transverse wave.” but light can be propagated without a medium , that is particles. so, how can...

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