1
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A square loop of area $25 \mathrm{~cm}^2$ has a resistance of $10 \Omega$. The loop is placed in uniform magnetic field of magnitude 40 T . The plane of loop is perpendicular to the magnetic field. The work done in pulling the loop out of the magnetic field slowly and uniformly in 1 second, will be

A
$2.5 \times 10^{-3} \mathrm{~J}$
B
$1.0 \times 10^{-3} \mathrm{~J}$
C
$1.0 \times 10^{-4} \mathrm{~J}$
D
$5 \times 10^{-3} \mathrm{~J}$
2
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A graph of magnetic flux $(\phi)$ versus current ( 1 ) is shown for four inductors A, B, C, D. Smaller value of self inductance is for inductor

MHT CET 2024 4th May Morning Shift Physics - Electromagnetic Induction Question 51 English

A
D
B
C
C
B
D
A
3
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A circular coil of resistance $R$, area $A$, number of turns ' $N$ ' is rotated about its vertical diameter with angular speed ' $\omega$ ' in a uniform magnetic field of magnitude ' $B$ '. The average power dissipated in a complete cycle is

A
$\frac{\mathrm{N}^2 \mathrm{~A}^2 \mathrm{~B}^2 \omega^2}{2 \mathrm{R}}$
B
$\frac{\mathrm{BNA} \omega}{\mathrm{R}}$
C
$\frac{\mathrm{N}^2 \mathrm{AB}}{2 \mathrm{R} \omega^2}$
D
$\frac{B A \omega}{2 N R}$
4
MHT CET 2024 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two coils are kept near each other. When no current passess through first coil and current in the $2^{\text {nd }}$ coil increases at the rate $10 \mathrm{~A} / \mathrm{s}$, the e.m.f. in the $1^{\mathbb{P}}$ coil is 20 mV . When no current passes through $2^{\text {nd }}$ coil and 3.6 A current passes through $1^2$ coil the flux linkage in coil 2 is

A
$1.2 \times 10^{-3} \mathrm{~Wb}$
B
$1.8 \times 10^{-3} \mathrm{~Wb}$
C
$3.6 \times 10^{-3} \mathrm{~Wb}$
D
$7.2 \times 10^{-3} \mathrm{~Wb}$
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