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)

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