Question

For how long 2.5 ampere of current is passed to supply 54000 C of charge ?

• A. 1 hr
• B. 2.5 hr
• C. 6 hr
• D. 9 hr

Answer 1

Answer: (C)

6 hr

Answer 2

$Q = It$ $t = \frac{Q}{I}$ $= \frac{54000}{2.5\,amp}$ $= 21600\,sec$ $= \frac{21600}{60\times 60}$ hours $= 6$ hours