# The electric current existing in a discharge tube is 2.0μA. How much charge is transferred across…..

Q.The electric current existing in a discharge tube is 2.0 μA . How much charge is transferred across a cross-section of the tube in 5 minutes?

(a) 6.0 × 10-4 C

(b) 5.0 × 10-4 C

(c) 4 × 10-4 C

(d) 6 × 10-5 C

Ans: (a)

Sol: $\large I = \frac{q}{t}$