Question

A wire delivers 12.0 C of charge in 4.0 s.

What is the current in the wire?

3.0 Acorrect
8.0 A
16 A
48 A

Answer 1

its 3 just took test have a good day

Answer 2

Current is equal to the quantity of charge, q, passing through a wire in a time period, t. So
`current = I = (q)/(t)`.

1 ampere (A) is equal to 1 coulomb (C), a measurement of charge, over 1 second (s), a measurement of time.

You are told that the charge, q = 12.0 C and the time, s = 4.0 s. Plug these values into the equation for current:

`I = (q)/(t)\\ I = (12.0\:C)/(4.0\:s) \\ I = 3.0 \:A`

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Answer: The current is 3.0 A.