If the amount of electric charge passing through a conductor in 10 minutes is 300C, the current flowing is:
a) 30A   b) 0.3A   c) 0.5A   d) 5A

Given: The amount of electric charge flowing through the conductor = 300C

The time through which the charge flowed = 10min = 600seconds.

To find: We have to find the current passing through the conductor.

Solution: We know that, 

Q = I x t

=> $I\ =\frac{Q}{t} \ $

=> $I\ =\frac{300}{600} \ =\ 0.5A$

Therefore, the amount of current flowing is 0.5A.