Physics · Magnetic Effects of Current
A 250-turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 μA and is subjected to a magnetic field of strength 0.85 T. The work done for rotating the coil by 180° against the torque from its initial stable equilibrium position is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11.15 μJ
- 29.1 μJ✓
- 34.55 μJ
- 42.3 μJ
Correct answer
9.1 μJ
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