Question 721: Current Electricity

Question

A car battery of emf 12 V and internal resistance $$5 	imes {10^{ - 2}}$$ $$\Omega $$., receives a current of 60 amp, from external source, then terminal potential difference of battery is

Accepted Answer

$${{V - E} \over r} = I \Rightarrow {{V - 12} \over {5 	imes {{10}^{ - 2}}}} = 60$$
$$ \Rightarrow V = 15V$$

Answer

12 V

Answer

9 V

Answer

15 V

Answer

20 V

Current Electricity

A car battery of emf 12 V and internal resistance $5 \times {10^{ - 2}} \Omega $., receives a current of 60 amp, from external source, then terminal potential difference of battery is

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