1

JEE Main 2022 (Online) 26th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

The magnetic flux through a coil perpendicular to its plane is varying according to the relation $$\phi = (5{t^3} + 4{t^2} + 2t - 5)$$ Weber. If the resistance of the coil is 5 ohm, then the induced current through the coil at t = 2 s will be,

2

JEE Main 2021 (Online) 1st September Evening Shift

MCQ (Single Correct Answer)

+4

-1

A square loop of side 20 cm and resistance 1$$\Omega$$ is moved towards right with a constant speed v

_{0}. The right arm of the loop is in a uniform magnetic field of 5T. The field is perpendicular to the plane of the loop and is going into it. The loop is connected to a network of resistors each of value 4$$\Omega$$. What should be the value of v_{0}so that a steady current of 2 mA flows in the loop?3

JEE Main 2021 (Online) 31st August Evening Shift

MCQ (Single Correct Answer)

+4

-1

A coil is placed in a magnetic field $$\overrightarrow B $$ as shown below :

A current is induced in the coil because $$\overrightarrow B $$ is :

A current is induced in the coil because $$\overrightarrow B $$ is :

4

JEE Main 2021 (Online) 31st August Morning Shift

MCQ (Single Correct Answer)

+4

-1

A small square loop of side 'a' and one turn is placed inside a larger square loop of side b and one turn (b >> a). The two loops are coplanar with their centres coinciding. If a current I is passed in the square loop of side 'b', then the coefficient of mutual inductance between the two loops is :

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

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