Question

The current in a car headlamp is 2.0A. The headlamp is switched on for 4.0 minutes.
How much charges passes through the head lamp?

Answer 1

Answer:

30 IS THE ANSWER.

Explanation:

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Answer 2

Answer:

the answer is 480 C.

Explanation:

Q = It

we need to find Q so,

Q = ? ; I = 2.0 A ; t= 4.0*60 s

= 240s (time should be in seconds as the SI unit of time is s, so minutes needs to be converted into seconds by multiplying by 60)

Then using the formula, Q = It

Q = 2.0*240

= 480 C

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