Question

125. An electric dipole consists of two opposite
charges each of magnitude 1.0 x10-6
coulomb separated by a distance of 2.0 cm.
The dipole is placed in an external field of
1.0 x10N/C. The maximum torque on the
dipole is
(1) 0.2 ×10^-3N-m
(2) 1.0×10^-3 N-m
(3) 2.0×10^-3N-m
(4) 4.0×10^-3N-m​

Answer 1

Answer:

field value is 1 × 10

Explanation:

use formula PEsin theta ...for max. theta should be 90

Answer 2

Answer:

2.0×10∧-3N-m

Explanation:

Max. Torque = pEsinθ

sinθ = 90° maximum

sin90° = 1

p= 1.0 × 10∧-6 × 2 = 2×10∧-6

pEsinθ = 2.0×10^-3N-m