✓ Board-verified
Physics · 2024 · 1 mark
CBSE 2024 · Region 2 · Set 1 · Q14
Assertion (A): Lenz's law is a consequence of the law of conservation of energy. Reason (R): There is no power loss in an ideal inductor.
Assertion (A) : Lenz's law is a consequence of the law of conservation of energy. Reason $\displaystyle (R)$ : There is no power loss in an ideal inductor.
Official answer
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
All Electromagnetic Induction questions2024 question paperNCERT solutions: Electromagnetic InductionPractice Electromagnetic Induction →
More from Electromagnetic Induction
- The emf induced in a coil rotating in a magnetic field does not depend upon the following:2024
- Two coplanar concentric circular loops of radii R and r(≪ R) are arranged coaxially. Obtain the expression for their mutual inductance. A square loop…2023
- A square loop of side 50 cm is placed in a uniform magnetic field of 3‧0 T acting perpendicular to the plane of the loop. If the loop is rotated…2026
- A closely wound long solenoid of self-inductance L is cut into two identical solenoids. The value of self-inductance of each small solenoid will be:2026
- Assertion: The mutual inductance between two coils is maximum when the coils are wound on each other. Reason (R): The flux linkage between two coils…2024
- A long solenoid of radius r consists of n turns per unit length. A current I=I_0 sin ω t flows in the solenoid. A coil of N turns is wound tightly…2023
- In the process of charging of a capacitor, the current produced between the plates of the capacitor is:2023
- The magnetic flux linked with a closed coil (in Wb ) varies with time t (in s ) as φ=5 t^2+4 t-2. If the resistance of the circuit is 14 Ω, the…2025
CBSE Class 12 Physics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.