Value of current in a short circuit is_
Correct answer: A. Infinite
- A. Infinite
- B. zero
- C. minimum
- D. maximum
Explanation
Option A is correct since, in a short circuit, there is no resistance to the flow of charges so a large number of charges flow in a very short time. Thus, the current becomes infinite. Option B is incorrect since there is a flow of charges in a short circuit so the current is not zero Option C is incorrect since it states that current will be very less which is not true as current will be large Option D is incorrect as the maximum current can even occur with very low resistance. But when almost zero resistance is provided the current flow becomes infinite.
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
Two copper conductors have equal lengths. The cross-sectional area of one conductor is four times that of the other. If the conductor having a smaller cross-sectional area has a resistance of 40 ohms, the resistance of the other conductor will be
What is the SI Unit of Potential difference?
1/Req = 1/Rl + 1/R2 + 1/R3 + ..... +1/Rn is the combination in
Formula for Power is:
The temperature coefficient of resistance is expressed in :
Four 100 W bulbs are connected in parallel across 200 V supply line. If one bulb gets fused: