Download the app

Questions  

A 800 turn coil of effective area 0.05 m2 is kept perpendicular to a magnetic field 5×10-5 T. When the plane of the coil is rotated by 90° around any of its coplanar axis in 0.1 s, the emf induced in the coil will be

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
a
0.02 V
b
2 V
c
0.2 V
d
2×10-3 V

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is A

Here N=800,A=0.05 m2 B=5×10-5 T,Δt=0.1 s  Induced emf, ε=-ΔϕΔt=-ϕf-ϕiΔt ϕi=N(B→·A→)=800×5×10-5×0.05×cos0°=2×10-3 T m2 ϕf=0 ∴ ε=-0-2×10-30.1=2×10-2 V=0.02 V

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

ctaimg

Create Your Own Test
Your Topic, Your Difficulty, Your Pace


Similar Questions

A loop, having area 20cm2, is made of thin copper wire. If is placed in a uniform magnetic field of induction 1.5 Tesla with its plane perpendicular to the field. If area of the loop increases to 30 cm2 in 0.5 second, average emf induced in the loop is


whats app icon
phone icon