Magnetic Effects Of Current Question 232
Question: A circular coil of 20 turns and radius 10 cm is placed in uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in coil is 5 A, then the torque acting on the coil will be [J & K CET 2005]
Options:
A) 31.4 Nm
B) 3.14 Nm
C) 0.314 Nm
D) Zero
Show Answer
Answer:
Correct Answer: D
Solution:
Since $ \theta =0{}^\circ $ so $ \tau =0 $ $ (\because ,\tau =NiAB\sin \theta ) $
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