1

JEE Main 2021 (Online) 16th March Evening Shift

MCQ (Single Correct Answer)

+4

-1

The magnetic field in a region is given by $$\overrightarrow B = {B_o}\left( {{x \over a}} \right)\widehat k$$. A square loop of side d is placed with its edges along the x and y axes. The loop is moved with a constant velocity $$\overrightarrow v $$ = v

_{0}$$\widehat i$$. The emf induced in the loop is :2

JEE Main 2021 (Online) 16th March Morning Shift

MCQ (Single Correct Answer)

+4

-1

A conducting bar of length L is free to slide on two parallel conducting rails as shown in the figure

Two resistors R

The correct statement about the directions of induced currents I

Two resistors R

_{1}and R_{2}are connected across the ends of the rails. There is a uniform magnetic field $$\overrightarrow B $$ pointing into the page. An external agent pulls the bar to the left at a constant speed v.The correct statement about the directions of induced currents I

_{1}and I_{2}flowing through R_{1}and R_{2}respectively is :3

JEE Main 2021 (Online) 26th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

An aeroplane, with its wings spread 10 m, is flying at a speed of 180 km/h in a horizontal direction. The total intensity of earth's field at that part is 2.5 $$\times$$ 10

^{$$-$$4}Wb/m^{2}and the angle of dip is 60$$^\circ$$. The emf induced between the tips of the plane wings will be __________.4

JEE Main 2021 (Online) 24th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Figure shows a circuit that contains four identical resistors with resistance R = 2.0$$\Omega$$, two identical inductors with inductance L = 2.0 mH and an ideal battery with emf E = 9V. The current 'i' just after the switch 'S' is closed will be :

Questions Asked from Electromagnetic Induction (MCQ (Single Correct Answer))

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