Electro Magnetic Induction And Alternating Currents Question 496

Question: A horizontal straight wire 20m long extending from east to west falling with a speed of 5.0 m/s, at right angles to the horizontal component of the earth’s magnetic field 0.30×104,Wb/m2 . The instantaneous value of the e.m.f. induced in the wire will be

Options:

A) 3 mV

B) 4.5 mV

C) 1.5mV

D) 6.0 mV

Show Answer

Answer:

Correct Answer: A

Solution:

  • εind=Bv=0.3×104×5×20

    =3×103,V=3m,V .



NCERT Chapter Video Solution

Dual Pane