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Question

A choke coil is a :

A
Device to reduce current in DC circuit
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B
Device to reduce current in AC circuit
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C
Coil of large inductance
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D
Coil of negligible resistance
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Solution

The correct options are
B Device to reduce current in AC circuit
C Coil of large inductance
D Coil of negligible resistance
A choke coil is essentially an indutor coil with large inductance and very low resistance.

It offers high inductive-reactance, thus high impedance, to AC voltage and thus limits the current in AC circuit, without increasing the resistance of the circuit.

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