A certain choke coil of negligible resistance takes a current of 8 amperes when connected to a supply of 100 volts, at 50 cycles per sec. A certain non-inductive resistance, under the same conditions, carries a current of 10 amp. If the two are transferred to a supply system working at 150 volts, at 40 cycles per second, what total current will they take
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
Sol. Given
Choke coil (negligible R):
So inductive reactance at 50 Hz:
Non-inductive resistor:
New supply: 
New inductive reactance
Since 
:
SERIES COMBINATION
Total impedance:
Current: 
PARALLEL COMBINATION
Branch currents:
Resistor branch:
Inductor branch:
Resultant current:
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems