what happens to the needle of a compass if the current flowing in a coil is doubled?
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Answer:
In MCG, deflection is proportional to torque on the coil and torque is proportional to current.
Hence, when current is doubled, deflection is doubled.
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Answer:
==>In MCG, deflection is proportional to torque on the coil and torque is proportional to current.
==>Hence, when current is doubled, deflection is doubled.
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