Questions
An inductor coil joined to a 4.5V battery draws a steady current of 13.5A. This coil is connected to a capacitor and an AC source of rms voltage 9V in series. If the current in the circuit is in phase with the emf, the rms current is
detailed solution
Correct option is D
XL=R=Vi=4.513.5 i=VXL=94.5×13.5=27 A .Talk to our academic expert!
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In the series LCR circuit as shown in figure, the heat developed in 80 seconds and amplitude of wattless current is:
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