Question Detail

PHY 102 Test Compilation PHY 102 19 Objective Question

Question

A current of 3A flows through a metre-length conductor. Calculate the force experienced by this conductor if a quarter of its length is perpendicular to a magnetic field of 0.5T.
Options
A 0.275N
B 0.370N
C 0.375N
Correct Answer
D 0.38N
Correct Answer

Option C is the correct answer.

Detailed Explanation

Only the quarter-length (0.25m) portion perpendicular to the field contributes: F = BIL = 0.5×3×0.25 = 0.375N.

Hint

Only the length of conductor that is actually perpendicular to the field contributes to the force — use F = BIL with that length.

Question Info