1 kW, 220 V electric heater is to be used with 220 V D.C. supply.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
[ 
= 4.55 A
= 48.4 Ω Ω
1000 W
240 cal s -1
(e) 80/3 gm]
Sol. i = 
= 4.55 A
R = 
= 48.4 Ω Ω
P = 1 kW
H = 
= 240 cal/sec
(e) tH = mL
m = 
gm.
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