The battery of a trunk has an emf of 24 V. If the internal resistance of the battery is 0.8 Ω. What is the maximum current that can be drawn from the battery ?

Question

The battery of a trunk has an emf of 24 V. If the internal resistance of the battery is 0.8 Ω. What is the maximum current that can be drawn from the battery ? (A) 30 A (B) 32 A (C) 33 A (D) 34 A

Tardigrade Admin · Accepted Answer

Here, ε=24 V and r=0.8 Ω For the maximum current from the battery. ε=Ir (∵ R=0) ∴ I=(ε/r)=(24/0.8)=30 A

Q. The battery of a trunk has an emf of $24 V$ . If the internal resistance of the battery is $0.8 Ω$ . What is the maximum current that can be drawn from the battery ?

$30 A$

$32 A$

$33 A$

$34 A$

Here, $ε = 24 V$ and $r = 0.8 Ω$
For the maximum current from the battery.
$ε = I r (∵ R = 0)$
$∴ I = \frac{ε}{r} = \frac{24}{0.8} = 30 A$

Q. The battery of a trunk has an emf of 24V. If the internal resistance of the battery is 0.8Ω. What is the maximum current that can be drawn from the battery ?

30A

32A

33A

34A