Electromagnetic Induction - Result Question 28

«««< HEAD:content/english/neet-pyq-chapterwise/physics/electromagnetic-induction/electromagnetic-induction-result-question-28.md

28. A conductor of length $0.4 m$ is moving with a speed of $7 m / s$ perpendicular to a magnetic field of intensity $0.9 Wb / m^{2}$. The induced e.m.f. across the conductor is

======= ####28. A conductor of length $0.4 m$ is moving with a speed of $7 m / s$ perpendicular to a magnetic field of intensity $0.9 Wb / m^{2}$. The induced e.m.f. across the conductor is

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/electromagnetic-induction/electromagnetic-induction—result-question-28.md (a) $1.26 V$

(b) $2.52 V$

(c) $5.04 V$

(d) $25.2 V$

[1995]

Show Answer

Answer:

Correct Answer: 28. (b)

Solution:

  1. (b) Length of conductor $(l)=0.4 m$; Speed (v) $=7 m / s$ and magnetic field $(B)=0.9 Wb / m^{2}$. Induced e.m.f. $(V)=B l v \sin \theta=0.9 \times 0.4 \times 7 \times \sin$ $90^{\circ}=2.52 V$.