viewquestions/3487/A 230 V 50 Hz ac supply is applied to a coil of 006 H inductance and 25 resistance connected in series with a 68 F capacitor Calculate i Impedance ii Current iii Phase angle between current and voltage iv power factor

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## The supply voltage to a room is 120 V. The resistance of the lead wires is 6Ω. A 60 W bulb is already switched on. What is the decrease of voltage across the bulb, when a 240 W heater is switched on in parallel to the bulb ? - physics 2013

(1) zero Volt (2) 2.9 Volt (3) 13.3 Volt (4) 10.04 Volt

By:milan-ransingh

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Vishu-vashistha

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