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Networks Analysis and Synthesis - Engineering

Q1:

A coil has a resistance of 2 Ω and inductance of 0.1 mH. The applied voltages is suddenly increased from 10 V to 20 V. After steady state condition have reached, the current is

A 2 A

B more than 2 A but less than 4 A

C 4 A

D more than 4 A

ANS:C - 4 A

The final steady state current in RL circuit depends only on final voltage (i.e., 20 V) and resistance.