Class 12 Physics Chapter 6 - Electromagnetic Induction MCQ and Assertion Questions

A square loop of side L lies in the x-y plane in a magnetic field \(\vec{B}\) = \(B_{0}\)(2 \(\hat{i}\) + 3 \(\hat{j}\) + 4\(\hat{k}\)), where \(B_{0}\) is a constant. The magnetic flux through the loop is :

The magnetic flux through a loop placed in a magnetic field can be changed by changing :

A metallic rod of 1 m length is rotated with a frequency of 40 rev/s, with one end hinged at the centre and the other end at the circumference of a circular metallic ring of radius 1 m, about an axis passing through the centre and perpendicular to the plane of the ring. A constant and uniform magnetic field of 0·5 T parallel to the axis is present in the region. The value of emf induced between the centre and the metallic ring is close to :

A rectangular loop of size 5 cm × 8 cm is lying in x-y plane in a uniform magnetic field \(\vec{B}\) = (2·0 T) \(\hat{k}\) . The total magnetic flux linked with the loop is :