When we study the phenomenon mutual induction between two coils, the primary coil consists of:
Correct answer: A. A rheostat and battery
- A. A rheostat and battery
- B. A rheostat and galvanometer
- C. Galvanometer only
- D. None of these
Explanation
When studying the phenomenon of mutual induction between two coils, the primary coil typically consists of: A rheostat and battery.The rheostat is used to vary the current passing through the primary coil, thus changing the magnetic flux linked with the secondary coil. The battery serves as a source of electric potential difference to drive the current through the primary coil. This setup allows for the controlled variation of the magnetic flux, which in turn induces an electromotive force (EMF) in the secondary coil as per Faraday's law of electromagnetic induction.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
Practise Electromagnetic Induction
288 free Electromagnetic Induction 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 Electromagnetic Induction questions
Lenz was a_physicist.
Lenz's law presented in:
Faraday's law was deduced in:
When we study mutual induction between two coils,the secondary coil circuit consists of:
The emf induced in the secondary coil is directly proportional to:
If the current in the coil itself is increased by rheostat, the emf induced will be: