Question Detail

PHY 102 Test Compilation PHY 102 6 Objective Question

Question

Three charges +1mC, -1mC, -1mC at vertices of equilateral triangle side 2cm. Field direction at center?
Options
A towards side AB
Correct Answer
B towards side BC
C towards side AC
D no direction
Correct Answer

Option A is the correct answer.

Detailed Explanation

By symmetry, the two -1mC produce field towards themselves. The +1mC produces field away. Net field points towards side opposite the positive charge, which is side AB.

Hint

Vector sum of fields.

Question Info