Question

an electric device hsa resistance of 800 ohm find current in it is connected to a 150vt source?

Answer 1

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Given,

T = 1 hr

V = 220v

R = 800ohm

H = V × V × T ÷ R

H = 220 × 220 × 1 ÷ 800

H = 217800 calorie per second.