Internal resistance of a battery is _ ohm if E = 10V, Vt = 9V, I = 1A.
Correct answer: A. 1
- A. 1
- B. 0.1
- C. 0.01
- D. None of these options are correct
Explanation
E-Vt = I 10-9 = 1V R = V/I = 1/1 = 1 ohm
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
Practise Current Electricity
1,052 free Current Electricity MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Current Electricity questions
The resistance of a wire on increasing its temperature will:
The circuit which gives continuously varying potential is called:
An electric iron is 20V & 500W . The unit consumed by it (in kJ) in using it for 24 hours will be:
A _ relationship exists between "current" and "voltage" in terms of the Ohm's law.
A neon flashlight cell with an emf of 1.5V gives a current of 15A when connected directly to an ammeter of resistance 0.040 Ohms. The internal resistance of the cell is?
Is Ohm's law applicable when a bulb is turned on?