Biot–Savart Law: JEE Questions & Solutions

An infinitely long straight wire carrying current I is bent in a planar shape as shown in the diagram. The radius of the circular part is…

The current passing through a conducting loop in the form of equilateral triangle of side 4 3 cm is 2 A. The magnetic field at its centroid…

Two identical circular loops P and Q each of radius r are lying in parallel planes such that they have common axis. The current through P…

The magnetic field at the centre of a current carrying circular loop of radius R is 16 T. The magnetic field at a distance x= 3R on its…

Two long parallel wires X and Y, separated by a distance of 6 cm, carry currents of 5 A and 4 A, respectively, in opposite directions as…

A current of 5 A exists in a square loop of side 1 2 m. Then the magnitude of the magnetic field B at the centre of the square loop will be…

An infinite wire has a circular bend of radius a, and carrying a current I as shown in the figure. The magnitude of the magnetic field at…

Let B1 be the magnitude of magnetic field at the center of a circular coil of radius R carrying current I. Let B2 be the magnitude of…

A loop ABCD, carrying current I = 12 A, is placed in a plane, consists of two semi-circular segments of radius R1 = 6 m and R2 = 4 m. The…

Figure shows a current carrying square loop ABCD of edge length is a lying in a plane. If the resistance of the ABC part is r and that of…

Two long, straight wires carry equal currents in opposite directions as shown in the figure. The separation between the wires is 5.0 cm.…

The magnetic field at the centre of a wire loop formed by two semicircular wires of radii R1 = 2 m and R2 = 4 m carrying current I = 4 A as…

Two insulated circular loops A and B of radius a, carrying a current I in anticlockwise direction, are arranged perpendicular to each…

The current of 5 A flows in a square loop of sides 1 m placed in air. The magnetic field at the center of the loop is X 2 10^-7 T. The…

A circular loop of radius r is carrying current I A. The ratio of magnetic field at the center of the circular loop and at a distance r…

Match List I with List II: Choose the correct answer from the option given below:

Two long parallel wires carrying currents 8 A and 15 A in opposite directions are placed at a distance of 7 cm from each other. A point P…

A single current-carrying loop of wire carrying current I flows in the anticlockwise direction (seen from the +z direction) and lies in the…

The magnitude of magnetic induction at the mid-point O due to the current arrangement shown in the figure is:

The electric current in a circular coil of four turns produces a magnetic induction of 32 T at its center. The coil is unwound and rewound…

As shown in the figure, a current of 2 A flowing in an equilateral triangle of side 4 3 cm. The magnetic field at the centroid O of the…

A long conducting wire having a current I flowing through it, is bent into a circular coil of N turns. Then it is bent into a circular coil…

Find the magnetic field at the point P in the figure. The curved portion is a semicircle connected to two long straight wires.

As shown in the figure, a long straight conductor with a semicircular arc of radius 10 m is carrying current I = 3 A. The magnitude of the…

Two identical circular wires of radius 20 cm and carrying current 2 A are placed in perpendicular planes as shown in the figure. The net…

A straight wire carrying a current of 14 A is bent into a semicircular arc of radius 2.2 cm as shown in the figure. The magnetic field…

An electron in a hydrogen atom revolves around its nucleus with a speed of 6.76 10^6 m s^-1 in an orbit of radius 0.52. The magnetic field…