The length of a conductor is halved. Its resistance will be _.
Correct answer: A. Halved
- A. Halved
- B. Doubled
- C. Unchanged
- D. Quadrupled
Explanation
Length of conductor is halved, the resistance will be halved too, both are directly proportional to each other.R = L/A
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 current passing through a conductor is directly proportional to the potential difference applied across its terminals, provided the temperature and other physical conditions of the conductor does not change.
Which of the following is not unit of power?
1 Watt = _.
An electric filament bulb can work only on a _.
Calculate the charge passing through the circuit if it's current is 10 Ampere and the recorded time is 15 seconds:
The mathematical form of Ohm's law is _.