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A choke coil has a self-inductance of and a resistance of . It is connected to a , a.c. supply…
A choke coil has a self-inductance of $0.5\text{ H}$ and a resistance of $50\ \Omega$. It is connected to a $220\text{ V}$, $50\text{ Hz}$ a.c. supply.
(a)
Calculate rms value of the current flowing through the coil.
(b)
What is the phase difference between the supply voltage and the current?
(c)
What is the power factor for this circuit?
Answer
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From ISC 2025 Improvement Physics Paper 1, question 18(i).