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: $\large I = \frac{q}{t}$
Science and Education
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: $\large I = \frac{q}{t}$