1
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
A conducting bar of length L is free to slide on two parallel conducting rails as shown in the figure

JEE Main 2021 (Online) 16th March Morning Shift Physics - Electromagnetic Induction Question 69 English
Two resistors R1 and R2 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 I1 and I2 flowing through R1 and R2 respectively is :
A
Both I1 and I2 are in clockwise direction
B
I1 is in clockwise direction and I2 is in anticlockwise direction
C
I1 is in anticlockwise direction and I2 is in clockwise direction
D
Both I1 and I2 are in anticlockwise direction
2
JEE Main 2021 (Online) 26th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
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/m2 and the angle of dip is 60$$^\circ$$. The emf induced between the tips of the plane wings will be __________.
A
88.37 mV
B
62.50 mV
C
54.125 mV
D
108.25 mV
3
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
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 :

JEE Main 2021 (Online) 24th February Evening Shift Physics - Electromagnetic Induction Question 72 English
A
3.0 A
B
3.37 A
C
9 A
D
2.25 A
4
JEE Main 2020 (Online) 5th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An infinitely long, straight wire carrying current I, one side opened rectangular loop and a conductor C with a sliding connector are located in the same plane, as shown, in the figure. The connector has length $$l$$ and resistance R. It slides to the right with a velocity v. The resistance of the conductor and the self inductance of the loop are negligible. The induced current in the loop, as a function of separation r, between the connector and the straight wire is : JEE Main 2020 (Online) 5th September Evening Slot Physics - Electromagnetic Induction Question 74 English
A
$${{{\mu _0}} \over {4\pi }}{{Ivl} \over {Rr}}$$
B
$${{{\mu _0}} \over {\pi }}{{Ivl} \over {Rr}}$$
C
$${{{\mu _0}} \over {2\pi }}{{Ivl} \over {Rr}}$$
D
$${{2{\mu _0}} \over \pi }{{Ivl} \over {Rr}}$$
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