SSC JE Electrical Engineering 2017 Set 4 Paper

Question : 119 of 200

Marks: +1, -0

The current through

Z_L

in the circuit shown below will be _______

Solution:

For maximum power transfer theorem

Z_ L =Z*_\th

Z_\th = (10 – j20)

Z*_\th = (10 j20)

Z_L = (10 + j20)

I={50∠0°}/(10 +20 j+ 10 -20J)

=50/20=2.5A

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