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An inductor L of inductance XL is connec...

An inductor L of inductance `X_L` is connected in series with a bulb B and an source. How would brightness of the bulb change when
the number of turns of the inductor is reduced
an iron rod is inserted in the inductor and
a capacitor of reactance `X_C=X_L` is inserted in series in the circuit. Justify your answer in each case.

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