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Solve the following.
An alternating emf is applied to a circuit containing a resistor connected in series with an…
An alternating emf $E = 5.0 \sin(314t)\text{ V}$ is applied to a circuit containing a resistor connected in series with an unknown component X.
The current in the circuit is found to be $I = 3.0 \sin\left(314t - \frac{\pi}{3}\right)\text{ A}$.
(a)[1.0]
Identify the component X.
(b)[1.0]
Calculate rms value ($I_{\text{rms}}$) of the current flowing through the circuit.
(c)[1.0]
Find the frequency of the source.
(d)[1.0]
Calculate power factor.
(e)[1.0]
Find the impedance ($Z$) of the circuit.
Answer
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From ISC 2025 Physics Paper 1, question 18(ii).