Define the time constant of the circuit, Electrical Engineering

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A coil of inductance 0.04 H and resistance 10? is connected to a 120 V, d.c. supply. Verify

(a)  The final value of current    

(b)  The time constant of the circuit

(c)  The value of current after a time equivalent to the time constant from the instant the supply voltage is connected.  

 


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