CBSE Class 12 (Science) Magnetism & EMI — practice questions
6 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 12 (Science) Magnetism & EMI in the app →A $50$-turn coil has a magnetic flux changing through it at a uniform rate of $4 \times 10^{-3}\,\text{Wb/s}$.Lenz's law is a direct consequence of:The SI unit Henry (H) is equivalent to:The self-inductance of a long air-cored solenoid of length $\ell$, cross-sectional area $A$ and total number oThe energy stored in an inductor of inductance $L$ carrying a steady current $I$ is:An ideal LC circuit oscillates freely. If $L = 4\,\text{mH}$ and $C = 25\,\mu\text{F}$, the angular frequency