Question

A current of 3.6 flows through an automobile headlight. How many coulombs of charge flow through the headlight in 3.0 h?

Answer 1

Given :

3.6 Amperes current flows through an automobile headlight  for 3 hours.

To find :

The amount of charge flow through the headlight in 3 hours

Solution:

Current is defined as the amount of charge passed through a particular cross section per unit time.

SI unit of current is Ampere.

time period - 3 hours.= 3×60×60 seconds.

(since  1 hour = 60 minutes and 1 minute = 60 seconds)

current = charge in coulumbs÷ time

charge = current× time

charge = 3.6 × 3×60×60 coulumbs

charge = 38880 coulumbs.

Charge flow through the headlight in 3 hours is - 38880 coulumbs