Charges & Magnetism Test

Result

Charges & Magnetism Test - 1

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
1 / -0

Four point charges –Q, -q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the potential at the center of the square is zero, is

A
Q=-q

B
Q = -2q

C
Q=q

D
Q = 2q

Solution

Given,

Four point charges 2q, 2Q, -Q, -q

Placed at corners of square

Also given, potential energy at center of square = 0
Question 2
1 / -0

Some charge is being given to a conductor then its potential is:

A
maximum at surface

B
maximum at centre

C
maximum somewhere between the surface and the center.

D
same throughout the conductor

Solution

The charge will equally distribute all over the surface of the conductor, only. Hence, throughout the conductor potential is the same i.e. the whole conductor is equipotential.