CBSE 2024 · Region 5 · Set 1 · Q5 · 1 mark
Two coils are placed near each other. When the current in one coil is changed at the rate of $\displaystyle 5 \mathrm{~A} / \mathrm{s}$, an emf of $\displaystyle 2$ mV is induced in the other. The mutual inductance of the two coils is
Official answer
From CBSE’s own marking scheme for this paper.
(A)
0.$\displaystyle 4$ mH
Electromagnetic InductionInductanceApplymcqeasy
More from Electromagnetic Induction
- Assertion: The mutual inductance between two coils is maximum when the coils are wound on each other. Reason…2024 · asked 3×
- In the process of charging of a capacitor, the current produced between the plates of the capacitor is:2023 · asked 3×
- A vertically held bar magnet is dropped along the axis of a copper ring having a cut as shown in the diagram.…2025 · asked 3×
- The direction of induced current in the loop abc is:2023 · asked 3×
- (i) Define self-inductance of a coil. Derive the expression for the energy required to build up a current I…2025 · asked 3×
- Two coils C 1 and C 2 are placed close to each other. The magnetic flux φ 2 linked with the coil C 2 varies…2023 · asked 3×
- Assertion: Induced emf produced in a coil will be more when the magnetic flux linked with the coil is more.…2026 · asked 3×
- (i) State Lenz's law and explain how this law is a consequence of conservation of energy principle. (ii) A…2025 · asked 3×
CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.