Maximum power is delivered when internal resistance of the source is equals to _.
Correct answer: B. Load resistance
- A. Zero resistance
- B. Load resistance
- C. Max resistance
- D. None of these options are correct
Explanation
The maximum power is delivered to a load when the load resistance is equal to the internal resistance of the source.
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
A current of 5A flows in a resistor of 2 Ohms. Calculate the energy dissipated in 300 seconds in the resistor.
The sensitivity of a potentiometer can be increased by _.
Resistance of a conductor depends upon
If the conductor has a resistance of 50 Ohms and the current passing through it is 5 A, what is the value of potential difference?
Electric power is _.
A 200W bulb operates in a 220V circuit. Find the current.