The current flow in the light bulb is 0.5A a. Calculate the amount of electric charge that flow through the bulb in 2 hour
b. If one election carries a
charge 1.6 x 10-14 c Find the number of election through the bulb in 2 hour?

Explanation:

Given that,

The current in the light bulb, I = 0.5 A

(a) We know that,

Electric current = charge/time

or

Q = It

Put t = 2 hours = 7200 s

So,

Q = 0.5 × 7200

Q = 3600 C

(b) Charge on one electron,

Let there are n electrons flow through the bulb in 2 hours.

I = Q/t

Since, Q = ne

So,

I = ne/t

Hence, this is the required solution.

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