Faraday's Laws of EMI: JEE Questions & Solutions

A conducting circular loop of area 1.0 m^2 is placed perpendicular to a magnetic field which varies as B = (100t) Tesla. If the resistance…

A 1 m long metal rod AB completes the circuit as shown in figure. The area of circuit is perpendicular to the magnetic field of 0.10 T. If…

XPQY is a vertical smooth long loop having a total resistance R, where PX is parallel to QY and the separation between them is l. A…

A conducting circular loop is rotated about its diameter at a constant angular speed of 100 rad s^-1 in a magnetic field of 0.5 T,…

A 20 m long uniform copper wire held horizontally is allowed to fall under the gravity (g = 10 m/s^2) through a uniform horizontal magnetic…

Match List-I with List-II. Choose the correct answer from the options given below:

A simple pendulum made of mass 10 g and a metallic wire of length 10 cm is suspended vertically in a uniform magnetic field of 2 T. The…

A circular loop of radius 7 cm is placed in uniform magnetic field of 0.2 T directed perpendicular to plane of loop. The loop is converted…

Suppose a long solenoid of 100 cm length, radius 2 cm having 500 turns per unit length, carries a current I = 10 ( t) A, where = 1000…

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…

A uniform magnetic field of 0.4 T acts perpendicular to a circular copper disc 20 cm in radius. The disc is having a uniform angular…

A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field B exists into the page. The bar starts to…

A coil of area A and N turns is rotating with angular velocity in a uniform magnetic field B about an axis perpendicular to B. Magnetic…

Conductor wire ABCDE with each arm 10 cm in length is placed in magnetic field of 1 2 Tesla, perpendicular to its plane. When conductor is…

A rectangular loop of length 2.5 m and width 2 m is placed at 60^ to a magnetic field of 4 T. The loop is removed from the field in 10 s.…

A square loop of side 10 cm and resistance 0.7 is placed vertically in the east-west plane. A uniform magnetic field of 0.20 T is set up…

A horizontal straight wire 5 m long extending from east to west falls freely at a right angle to the horizontal component of Earth’s…

A ceiling fan having 3 blades of length 80 cm each is rotating with an angular velocity of 1200 rpm. The magnetic field of Earth in that…

Match List I with List II: List I: A. Gauss’s Law B. Faraday’s Law C. Lenz’s Law D. Ampere’s Law List II: I. E dA = Q 0 II. B d l = 0 I…

A coil is placed perpendicular to a magnetic field of 5000 T. When the field is changed to 3000 T in 2 s, an induced emf of 22 V is…

A square loop of side 15 cm is being moved towards right at a constant speed of 2 cm/s. The front edge enters the 50 cm wide magnetic field…

A conducting loop of radius ^1/2 (10) cm is placed perpendicular to a uniform magnetic field of 0.5 T. The magnetic field is decreased to…

A metallic rod of length L is rotated with an angular speed of normal to a uniform magnetic field B about an axis passing through one end…

A wire of length 1 m moving with velocity 8 m/s at right angles to a magnetic field of 2 T. The magnitude of induced emf between the ends…

A certain elastic conducting material is stretched into a circular loop. It is placed with its plane perpendicular to a uniform magnetic…

A square loop of area 25 cm^2 has a resistance of 10. The loop is placed in a uniform magnetic field of 40.0 T. The plane of the loop is…

A coil is placed in a magnetic field such that the plane of the coil is perpendicular to the direction of the magnetic field. The magnetic…

A square shaped coil of area 70 cm^2 having 600 turns rotates in a magnetic field of 0.4 wbm^-2, about an axis which is parallel to one of…

Which of the following scenarios will result in an induced emf in a coil?

A 1 m long metal rod completes the circuit as shown in the figure. The plane of the circuit is perpendicular to a magnetic field of flux…

A square loop of side 2.0 cm is placed inside a long solenoid that has 50 turns per centimeter and carries a sinusoidally varying current…

The magnetic field B crossing normally a square metallic plate of area 4 m^2 is changing with time as shown in the figure. The magnitude of…

A conducting circular loop is placed in a uniform magnetic field of 0.4 T with its plane perpendicular to the field. Somehow, the radius of…

An insulated copper wire of 100 turns is wrapped around a wooden cylindrical core of the cross-sectional area 24 cm^2. The two ends of the…

A 20 cm long metallic rod is rotated with 210 rpm about an axis normal to the rod passing through its one end. The other end of the rod is…