1
JEE Main 2025 (Online) 22nd January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A rectangular metallic loop is moving out of a uniform magnetic field region to a field free region with a constant speed. When the loop is partially inside the magnate field, the plot of magnitude of induced emf $(\varepsilon)$ with time $(t)$ is given by

A
JEE Main 2025 (Online) 22nd January Evening Shift Physics - Electromagnetic Induction Question 4 English Option 1
B
JEE Main 2025 (Online) 22nd January Evening Shift Physics - Electromagnetic Induction Question 4 English Option 2
C
JEE Main 2025 (Online) 22nd January Evening Shift Physics - Electromagnetic Induction Question 4 English Option 3
D
JEE Main 2025 (Online) 22nd January Evening Shift Physics - Electromagnetic Induction Question 4 English Option 4
2
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A square loop of side $$15 \mathrm{~cm}$$ being moved towards right at a constant speed of $$2\mathrm{~cm} / \mathrm{s}$$ as shown in figure. The front edge enters the $$50 \mathrm{~cm}$$ wide magnetic field at $$t=0$$. The value of induced emf in the loop at $$t=10 \mathrm{~s}$$ will be :

JEE Main 2024 (Online) 9th April Evening Shift Physics - Electromagnetic Induction Question 12 English

A
zero
B
4.5 mV
C
0.3 mV
D
3 mV
3
JEE Main 2024 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In a coil, the current changes from $$-2 \mathrm{~A}$$ to $$+2 \mathrm{~A}$$ in $$0.2 \mathrm{~s}$$ and induces an emf of $$0.1 \mathrm{~V}$$. The self inductance of the coil is :

A
4 mH
B
2.5 mH
C
1 mH
D
5 mH
4
JEE Main 2024 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Two conducting circular loops A and B are placed in the same plane with their centres coinciding as shown in figure. The mutual inductance between them is:

JEE Main 2024 (Online) 5th April Morning Shift Physics - Electromagnetic Induction Question 11 English

A
$$\frac{\mu_o}{2 \pi} \cdot \frac{b^2}{a}$$
B
$$\frac{\mu_{\mathrm{o}} \pi \mathrm{a}^2}{2 \mathrm{~b}}$$
C
$$\frac{\mu_0 \pi b^2}{2 a}$$
D
$$\frac{\mu_0}{2 \pi} \cdot \frac{a^2}{b}$$
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