Three charges, Q 1 , Q 2 , and Q 3 are located along a straight line. The positi

Question

Three charges, Q1, Q2, and Q3 are located along a straight line. The position of Q2 is 0.257 m to the right of Q1. Q3is located 0.147 m to the right of Q2. The force on Q2 due to its interaction with Q3 is directed to the (Give ALL correct answers, i.e., B, AC, BCD...)

A) right if the two charges are negative.
B) left if the two charges are positive.
C) right if the two charges have opposite signs.
D) left if the two charges are negative.
E) left if the two charges have opposite signs.

A hollow spherical conductor with no excess charge has an inner radius of 5.0 cm and an outer radius of 11.0 cm. If a charge of 28 C is placed at its center, which plot best represents how the electric field will vary with distance from the charge?

Explanation / Answer

answers for the first question are

B,C,D

( considering like charges repel and unlike charges attract)

answer for the second question is

A

( electric field inside a conductor is zero, hence field would exist only inside the shell and outside the shell)

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