Check Our EMI

Electricity and Magnetism Level 3

A wire loop enclosing a semi-circle of radius $r = 1 \text{ m}$ is located on the boundary of a uniform magnetic field of induction $B = 2T$ . At the moment $t = 0$ the loop is set into rotation with a constant angular acceleration $\alpha = 3\text{ rad/s}^{2}$ about an axis $O$ coinciding with a line of vector $B$ on the boundary. Find the magnitude emf induced (in Volts) in the loop at $t = 2\text{ sec}$ .

(You can ignore self-inductance effects.)

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 8 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.