Question

An electric bulb draws a current of 0.25 A for 20 minutes. Calculate the amount of electric charge that flows through the circuit.
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)

Answer 1

Solution:
GIVEN:

Current (I)= 0.25 A
Time(t)= 20 min

t= 20 × 60= 1200 seconds
[1 minute= 60 seconds]

We know that,
I = Q/t

0.25 = Q/1200
Q= 0.25 × 1200
Q= 300 C
Hence, the amount of electric charge that flows through the circuit is 300 coulombs.

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Answer 2

Explanation:

Hence the amount of electic charge that flows through the circuit is 300 C

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