Physics, asked by theharshitarawat, 5 months ago

An electric heater is marked 1100W, 220V. Calculate the maximum safe current through the heater and the resistance of heater coil?

Answers

Answered by Vinitvinayak

2

Explanation:

Electric power = voltage x current, i.e., P = VI Given P = 1100 W and V = 220 V ∴ Current in the circuit I = P/V = 1100 W/220V = 5 A Resistance of the heating element = V/I = 220 V/5 A = 44 Ω. Energy consumed in the month of November if the heater is used 4 h per day = Power x time = 1100 W x 30 x 4 h = 132000 Wh = 132 kWh

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