19. How much energy is consumed when a current of 5 amperes flows through the
filament (or element) of a heater having resistance of 100 ohms for two hours? express in joules
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Answered by
9
Energy(E) = Voltage (V) × Current (I) × Time (t)
and V = I×R (Resistance)
So we get that E = I^2 × R × t
Putting values of I, R and t we get =>
E = 5^2 × 100 × 2
E = 25 × 100 × (2×60×60)
So the ans. is 18000000 joules = 18 mega joule
and V = I×R (Resistance)
So we get that E = I^2 × R × t
Putting values of I, R and t we get =>
E = 5^2 × 100 × 2
E = 25 × 100 × (2×60×60)
So the ans. is 18000000 joules = 18 mega joule
Answered by
8
Answer:
ENERGY = 18 × 10^6
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