Questions
An inductive coil and resistance of . When an ac signal of frequency 1000 Hz is fed to the coil, the applied voltage leads the current by . What is the inductance of the coil?
detailed solution
Correct option is C
VLVR=tanΦ=tan45o=1LωR=1L=Rω=1002π×1000=120π=162.8=100062.8×10−3=16mHTalk to our academic expert!
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A virtual current of 4A and 50 Hz flows in an ac circuit containing a coil. The power consumed in the coil is 240 W. If the virtual voltage across the coil is 100 V its inductance will be
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