Question

A current of 1.5A flows through an electric toothbrush for 90 seconds. How much charge has flowed through the toothbrush

Answer 1

Answer:

1 / 60 C ( or ) 1.66 C ( approximately )

Explanation:

Given : -

Current ( I ) = 1.5 A

Time ( t ) = 90 seconds

To find : Charge ( Q ) = ?

Formula : -

I = Q / t

Q = I t

= 1.5 / 90

= ( 1.5 × 10 ) / ( 90 × 10 )

= 15 / 900

Q = 1 / 60 C

( or )

Q = 1.66 C ( approximately )

Therefore,

1 / 60 C of charge has flowed through the toothbrush.