Question Detail

PHY 102 Electrostatics: Electric Charge and Coulomb's Law Objective Question

Question

What is the result of 'charge separation' in a neutral metal rod when a positive rod is brought near (but not touching) one end?
Options
A The metal rod becomes net positive.
B Electrons move toward the end near the positive rod, leaving the other end positive.
Correct Answer
C The metal rod becomes net negative by drawing charge from the air.
D Positive ions move toward the positive rod due to attraction.
Correct Answer

Option B is the correct answer.

Detailed Explanation

In induction, the external charge pulls opposite charges (electrons in metals) toward it, creating a separation while the net charge remains zero.

Hint

The rod stays neutral but the charges move internally.

Question Info