Question Detail

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

When an electric dipole is placed in a uniform electric field, it experiences a torque (τ). What is the formula for this torque?
Options
A τ = pE cos θ
B τ = pE sin θ
Correct Answer
C τ = qE/m
D τ = kQ/r²
Correct Answer

Option B is the correct answer.

Detailed Explanation

Torque is the cross product of the dipole moment and the electric field, which simplifies to the magnitude pE multiplied by the sine of the angle between them.

Hint

The cross product vector formula involves sine.

Question Info

Course: PHY 102
Topic: Electrostatics: Electric Charge and Coulomb's Law
Type: Objective
Difficulty: Not specified
Question 142 of 1819
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