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An alternating emf of , is applied to an L-R circuit, having a resistance of and an inductance of…
(i)[3.0]
An alternating emf of $200\text{ V}$, $50\text{ Hz}$ is applied to an L-R circuit, having a resistance $R$ of $10\\ \Omega$ and an inductance $L$ of $0\cdot05\text{ H}$ connected in series. Calculate:
(1) Impedance.
(2) Current flowing in the circuit.
(ii)[2.0]
Draw a labelled graph showing the variation of inductive reactance ($X_L$) verses frequency ($f$).
Draw: Graph showing the variation of inductive reactance (XL) versus frequency (f)
Must show: Frequency (f) on horizontal axis, Inductive reactance (XL) on vertical axis, Straight line passing through the origin
Answer
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From ISC 2019 Physics Paper 1, question 20(a).