Question

a charge of 90c passes through a wire in 1 hour and 15 min. what is the current in the wire?
10mA
20mA
25mA
15mA​

Answer 1

Answer:

20mA

Explanation:

As to find the current when number of charges are given is:

I = Q/t

Where Q = 90, t = 75 × 60 = 4500

I = 90 ÷ 4500

= 0.02A × 1000

= 20mA

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