List of top Physics Questions on Magnetic Field asked in MHT CET

Two parallel wires of equal lengths are separated by a distance of \(3\) m from each other. The currents flowing through first and second wire is \(3\) A and \(4.5\) A respectively in opposite directions. The resultant magnetic field at mid point of both the wires is (\(μ_0\)=permeability of free space)

Calculate the radius of a circular path for an electron moving through a magnetic field \(B = 12 \times 10^{-4}\,\text{T}\) with \(v = 3.2 \times 10^{7}\,\text{m/s}\).

A circular arc of wire of radius of curvature \(r\) subtends an angle of \(\frac{π}{5}\) radian at its centre. If current \(i\) is flowing in it then the magnetic induction at its centre is (\(μ_0\) = permeability of free space)

A current carrying circular coil of radius 'R' produces magnetic field \(B_1\) at an axial point P at a distance 'x' from its centre and \(B_2\) at point Q placed at its centre respectively . If \(B_2 = 8B_1\), the value of x is

A straight long wire is carrying current I. The ratio of magnetic field due to this wire at perpendicular distance 2 cm and 5 cm respectively from the wire is

The ratio of magnetic field at the centre of the current carrying circular loop and its magnetic moment is '\(x\)'. When both the current and radius are tripled, then the ratio will be

Two planar concentric rings of metal wire having radii '\(r_1\)' and '\(r_2\)' (with \(r_1 > r_2\)) are placed in air. The current 'I' is flowing through the coil of larger radius. The mutual inductance between the coils is given by ( \(μ_0\) = permeability of free space)

In the cyclotron, as radius of the circular path of the charged particle increases, (\(ω\) = angular velocity, V = linear velocity)

A long wire is bent into a circular coil of one turn and then into a circular coil of smaller radius having n turns. If the same current is passed in both the cases, the ratio of magnetic field produced at the centre for one turn to that of n turns is

A thin ring of radius 'R' metre has charge 'q' coulomb uniformly spread on it. The ring rotates about its axis with a constant frequency of 'f' revolution/s. The value of magnetic induction at the centre of the ring in \(\text{Wb/m}^2\) is

( \(μ_0\) = permeability of free space )

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 is at equidistant from both the wires such that the lines joining the point P to the wires are perpendicular to each other. The magnetic field at P is ___ \(\times 10^{-6}\) T. (Given: \(\sqrt{2} = 1.4\), \(μ_0 = 4π\times 10^{-7}\) SI unit)

The SI unit of Magnetic Induction is:

What is the SI unit of magnetic induction?

What is the SI unit of magnetic induction?

What is the SI unit of Magnetic Induction?

What is the SI unit of Magnetic Induction?

A circular coil has radius ' \(R\) '. The distance from centre on axis where induction is \(1/27\) th of its value at centre is.

A circular coil carrying current 'I' has a radius 'r' and 'n' turns. The magnetic field along the axis of a coil at a distance '2√2 r' from its centre is ______.

In the following figure magnitude of the magnetic field at the point p is ______.

A coil having 9 turns carrying current produces magnetic field \( B_1 \) at the centre. Now that coil is rewound into 3 turns carrying same current. Then magnetic field at the centre \( B_2 \) is

A coil of 100 turns, carrying a current of 5A, is placed in a magnetic field of 2T. The area of each turn is 0.01 m\(^2\). What is the magnetic moment of the coil?

A circular coil has radius ' \(R\) '. The distance from centre on axis where induction is \(1/27\) th of its value at centre is.

A wire of length '(L)' carries a current '(I)'. If the wire is turned into a square coil of single turn, the maximum magnitude of the torque in a given magnetic field ((\vec{B})) is

A wire of length '(L)' carries a current '(I)'. If the wire is turned into a square coil of single turn, the maximum magnitude of the torque in a given magnetic field ((\vec{B})) is

A circular loop of radius 0.2 m carries a current of 4 A. What is the magnetic field at a point on the axis of the loop at a distance 0.2 m from the center?