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A battery of emf 10 V and internal resistance 3 O is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed

A battery of emf 10 V and internal resistance 3 O is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
emf of battery=10v
r, internal rssitance of battery=3 ohmscurrent in th circuit,I=0.5A
Resistanc of the rsistor=R
Ohm's law
I=E/(R+r)
So, R=17 ohms
Terminal voltage of the reesistor=V
Ohm's law states that
V=IxR
So, V= 8.5V

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