Question

In an l-r circuit, the value of l is (0.4/π) henry and the value of r is 30 ohm. If in the circuit, an alternating emf of 200 volt at 50 cycles per second is connected, the impedance of the circuit and current will be

Answer 1

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Answer 2

Answer:

Explanation:

Inductive reactance:

XL = 2tfL

= 2T1x 50x0.5

= 157.1 0a

Capacitive reactance

Xe ZfC

2Ttx50x100

3.18x 10 Q

()

Impedance

Z= X+Xc2

(157.1+ (3.18x 105)

= 157.10

Maximum current

240

157.1