i) The ra ng of an electric heater is 1100W, 220 V. Calculate its resistance w hen it operates at 220V. Also calculate the energy consumed in kWh in one month, if the heater is used daily for 4 hrs at rated voltage.
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Answer:
44ohm,
Explanation:
P=V²/R
R=220²/1100
=44 ohm
energy consumed in a month
=1.1kW*4*30
132kWh
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