On which of the following effects of electric current a fuse operates ?
Correct answer: C. Heating effect
- A. Photoelectric effect
- B. Electrostatic effect
- C. Heating effect
- D. Magnetic effect
Explanation
Current produces heat according to the Joule-heating relation, and the fuse element is chosen to melt when this heating exceeds its safe limit. The operating principle is therefore the heating effect of current.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Wiring, Installation and Safety
115 free Wiring, Installation and Safety MCQs from Electrical Engineering, 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 Electrical Engineering questions like this
Electrical Engineering is on 2 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 Wiring, Installation and Safety questions
A fuse in a motor circuit provides protection against__________?
Oil switches are employed for_____________?
Protection by fuses is generally not used beyond__________?
The fuse rating is expressed in terms of_____________?
The material used for fuse must have_____________?
A fuse is connected_______________?