ElectroMagnetic InductionHard
Question
The magnetic field in a coil of 100 turns and 40 cm2 an area is increased from 1 tesla to 6 tesla in 2 second. The magnetic field is perpendicular to the coil. The e.m.f. generated in it is : -
Options
A.104 V
B.1.2 V
C.1.0 V
D.10-2 V
Solution
e = 
= (100) (40 × 10-4) 
= 0.8 volt ≈ 1volt
= (100) (40 × 10-4) = 0.8 volt ≈ 1volt
Create a free account to view solution
View Solution FreeMore ElectroMagnetic Induction Questions
A closely wound flat circular coil of 25 turns of wire has diameter of 10 cm which carries current of 4 amperes, the flu...A semicircle conducting ring of radius R is placed in the xy plane, as shown in the figure. A uniform magnetic field is ...If a diamagnetic solution is poured into a U-tube and one arm of this U-tube placed between the poles of a strong magnet...A metallic rod of length ′l′ is tied to a string of length 2l and made to rotate with angular speed ω ...A conducting ring lies fixed on a horizontal plane. If a charged nonmagnetic particle is released from a point (on the a...