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66 Maths Exercise Solutions

A light bulb is rated at for a supply. Find the resistance of the bulb

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A light bulb is rate at for a supply. Find the Peak voltage of the source

A light bulb is rate at for a supply. Find the current through the bulb.

A pure inductor of is connected to a source of . Find the inductive reactance and the rms current in circuit if the frequency of the source is .

A lamp is connected in series with a capacitor. Predict your observations for dc and ac connections. What happens in each case if the capacitance is reduced.

A micro Farad capacitor is connected to a source Find the capacitive reactance and current rms and peak in circuit. If the frequency is doubled what happens to the capacitive reactance and current.

A light bulb and an open coil inductor are connected to an ac source through a key as shown.The switch is closed and after sometime, an iron rod is inserted into the interior of the inductor. The glow of the light bulb increases; decreases; is unchanged, as the iron rod is inserted. Give your answer with reasons.

A resistor of and capacitance are connected in series to a and source. Calculate current in the circuit.

A resistor of ohm and capacitance micro farad are connected in series to a V and Hz source. Calculate the voltage rms across the resistor and capacitor is the algebraic sum of these voltage more than the source voltage ? if yes, resolve the paradox

For circuits used for transporting electric power, a low power factor implies large power loss in transmission. Explain.

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