SaraNextGen Study App [2023-24]
Last Updated On 01-06-2023 - By Jeesha Sara

A battery of  and internal resistance  is connected to a variable resistor  as shown here. Which one of the following is true

a)

Potential difference across the terminals of the battery is maximum when

b)

Power delivered to the resistor is maximum when

c)

Current in the circuit is maximum when

d)

Current in the circuit is maximum when


Question ID - 150303 :-

A battery of  and internal resistance  is connected to a variable resistor  as shown here. Which one of the following is true

a)

Potential difference across the terminals of the battery is maximum when

b)

Power delivered to the resistor is maximum when

c)

Current in the circuit is maximum when

d)

Current in the circuit is maximum when

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

For power to be maximum

External resistance = Equivalent internal resistance of the circuit



Next Question :

A potential difference  is applied to a copper wire of length and thickness . If  is doubled, the drift velocity

a)

Is doubled

b)

Is halved

c)

Remains same

d)

Becomes zero


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