MHT CET 2026 15th April Morning Shift | Electromagnetic Induction Question 27 | Physics

A coil of 'n' turns and resistance $R\,\Omega$ is connected in series with a resistance $R/4$. The combination is moved for time 't' second through flux $\Phi_1$ to $\Phi_2$. The induced current in the circuit is

$\dfrac{4n(\Phi_1 - \Phi_2)}{5RT}$

$\dfrac{5n^2(\Phi_1 - \Phi_2)}{4RT}$

$\dfrac{2n(\Phi_1 - \Phi_2)}{3RT}$

$\dfrac{3n(\Phi_1 - \Phi_2)}{4RT}$

MHT CET 2026 15th April Morning Shift

MCQ (Single Correct Answer)

-0

The coefficient of mutual induction is $3$H and induced e.m.f. across secondary is $4$ kV. Current in primary is reduced from $7$A to $2$A. The time required for the change of current is

$3.75 \times 10^{-3}$ s

$2.5 \times 10^{-3}$ s

$4.5 \times 10^{-3}$ s

$3.5 \times 10^{-3}$ s

MHT CET 2026 15th April Morning Shift

MCQ (Single Correct Answer)

-0

A bar magnet falls from a height 'h' through a metal pipe, its acceleration after coming out of pipe is

less than $9.8 \text{ m/s}^2$

greater than $9.8 \text{ m/s}^2$

equal to $9.8 \text{ m/s}^2$

equal to 'h' $\text{m/s}^2$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

Two inductors of 80 mH each are joined in parallel. The current passing through the combination is 2.1 A . The energy stored in this combination of inductors is

$4.84 \times 10^{-2} \mathrm{~J}$

$7.26 \times 10^{-2} \mathrm{~J}$

$8.82 \times 10^{-2} \mathrm{~J}$

$10.85 \times 10^{-2} \mathrm{~J}$

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