19. If an electric lamp lights for 4 hour drawing 0.8 A of current, then the amount that has passed through the lamp is. (A) 0.2 C (B1152 C (C) 11520 C (D) 32 C
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Answer:
As the coulomb's and ampere rule we know that,
Q=IT (where Q is charge,I is current and T is time)
=0.8×(4×3600) Coulomb T=4 hrs (here time change into second)
=11520 coulomb. =(4×3600) second
∴Option (c) is the correct answer.Hope you understand.
Explanation:
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