Question

An isolated point charge +q is placed inside the Faraday cage. Its surface must have charge equal toa) Zero
b) +q
c) –q
d) +2q

Answer 1

Answer:

-q

Explanation:

in faraday cage electric force inside the the cage is equal to outside the

Answer 2

Given:

An isolated point charge +q is placed inside the Faraday cage. Its surface must have charge equal to

a) Zero

b) +q

c) –q

d) +2q

Solution:

Since, we know that-

A Faraday cage or Faraday shield is an enclosure used to block electromagnetic fields.

A Faraday case may be formed by a continuous covering of conductive material.

Since, we know that-  when a isolated point charge is placed inside a Faraday case, then an equal and opposite amount of charge is induced on its surface.

therefore, when a isolated point charge +q is placed inside the Faraday cage then its surface must have -q amount of charge.

Hence, option (c) is correct.