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Computer Science
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Measurements and Instrumentation
The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240 x 10-6 N-m on full scale. If B = 1 Wb/m2, range of meter is
1 mA
2 mA
3 mA
4 mA
Show Answer
Correct Answer:
2 mA
Explanation:
NBAI = Controlling torque or
= 240 x 10
-6
or I = 2 mA.
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