JEE Main 2022 (Online) 26th June Evening Shift | Electromagnetic Induction Question 58 | Physics

Two coils of self inductance L₁ and L₂ are connected in series combination having mutual inductance of the coils as M. The equivalent self inductance of the combination will be :

JEE Main 2022 (Online) 26th June Evening Shift Physics - Electromagnetic Induction Question 61 English

$${1 \over {{L_1}}} + {1 \over {{L_2}}} + {1 \over M}$$

$${L_1} + {L_2} + M$$

$${L_1} + {L_2} + 2M$$

$${L_1} + {L_2} - 2M$$

JEE Main 2022 (Online) 26th June Evening Shift

MCQ (Single Correct Answer)

-1

A metallic conductor of length 1 m rotates in a vertical plane parallel to east-west direction about one of its end with angular velocity 5 rad s^$$-$$1. If the horizontal component of earth's magnetic field is 0.2 $$\times$$ 10^$$-$$4 T, then emf induced between the two ends of the conductor is :

5 $$\mu$$V

50 $$\mu$$V

5 mV

50 mv

JEE Main 2022 (Online) 26th June Morning Shift

MCQ (Single Correct Answer)

-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,

15.6 A

16.6 A

17.6 A

18.6 A

JEE Main 2021 (Online) 1st September Evening Shift

MCQ (Single Correct Answer)

-1

A square loop of side 20 cm and resistance 1$$\Omega$$ is moved towards right with a constant speed v₀. 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 v₀ so that a steady current of 2 mA flows in the loop?

JEE Main 2021 (Online) 1st September Evening Shift Physics - Electromagnetic Induction Question 65 English