Question 49: Electromagnetic Induction

Question

A square loop of side $$15 \mathrm{~cm}$$ being moved towards right at a constant speed of $$2\mathrm{~cm} / \mathrm{s}$$ as shown in figure. The front edge enters the $$50 \mathrm{~cm}$$ wide magnetic field at $$t=0$$. The value of induced emf in the loop at $$t=10 \mathrm{~s}$$ will be :

Accepted Answer

Time taken to cross the field region
$$=\frac{50}{2}=25 \mathrm{~s}$$
At $$10 \mathrm{~s}$$ the loop is inside field and flux is not changing.
$$	herefore \quad \varepsilon_{	ext {induced }}=0$$

Answer

zero

Answer

4.5 mV

Answer

0.3 mV

Answer

3 mV

Electromagnetic Induction

A square loop of side $15 \mathrm{~cm} being moved towards right at a constant speed of 2\mathrm{~cm} / \mathrm{s} as shown in figure. The front edge enters the 50 \mathrm{~cm} wide magnetic field at t=0. The value of induced emf in the loop at t=10 \mathrm{~s}$ will be :

Choose the correct answer: