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4 years ago

Negative charge –Q is distributed uniformly over the surface of a thin spherical insulating

Physics

1 answer:

loris [4]4 years ago

3 0

Answer:

Explanation:

The force of attraction or repulsion is given by

F=q1q2/4πϵ0r²

A. It is given that q1= -Q i.e a negative charge

And q2=q and it is at a distance r from Q.

Since it is a positive and negative charge then it is a force of attraction

So applying the equation,

F=q1q2/4πϵ0r²

F=Qq/4πϵ0r²

B. The direction of the force on q due to the Q is force of attraction and it is moving towards each other.

C. It is given that q1= -Q i.e a negative charge

And q2=q and it is at a distance r from Q.

Since it is a positive and negative charge then it is a force of attraction

So applying the equation,

F=q1q2/4πϵ0r²

F=Qq/4πϵ0r²

But if r is less than R i.e it is inside the sphere, then the F is zero inside the sphere

F=0N

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2 years ago

A coil 3.85 cm radius, containing 450 turns, is placed in a uniform magnetic field that varies with time according to B=( 1.20×1

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Answer:

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Explanation:

Parameters given:

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The magnitude of Induced EMF is given as:

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dB/dt = 0.012 + 0.000104t³

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3 years ago

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4 years ago

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3 years ago

if a freely falling object were somehow equipped with a speedometer on a planet where the acceleration due to gravity is 20 m/s/

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4 years ago