The quantity of a charge that will be transferred by a current flow of 20 A over 1 h 30 min period is

Question

The quantity of a charge that will be transferred by a current flow of 20 A over 1 h 30 min period is (A) 10.8× 103 C (B) 10.8× 104 C (C) 5.4× 103 C (D) 1.8× 104 C

Tardigrade Admin · Accepted Answer

Electric current, I=(d Q/d t) dQ=Idt t1=0,t2=1 h 30 min =90min =90× 60=5400 s Electric charge, Q = I . t = 20 × 5400 C = 10.8 × 104 C

Q. The quantity of a charge that will be transferred by a current flow of $20 A$ over $1 h 30 min$ period is

$10.8 \times 1 0^{3} C$

$10.8 \times 1 0^{4} C$

$5.4 \times 1 0^{3} C$

$1.8 \times 1 0^{4} C$

Electric current, $I = \frac{d Q}{d t}$
$d Q = I d t$
$t_{1} = 0, t_{2} = 1 h 30 min$
$= 90 min = 90 \times 60 = 5400 s$
Electric charge, $Q = I . t$
$= 20 \times 5400 C$
$= 10.8 \times 1 0^{4} C$

Q. The quantity of a charge that will be transferred by a current flow of 20A over 1h30min period is

10.8×103C

10.8×104C

5.4×103C

1.8×104C