ElectroMagnetic InductionMedium
Question
A very small circular loop of area 5 × 10-4 m2 and resistance 2 ohm is initially concentric and coplanar with a stationary loop of radius 0.1 m. If one ampere constant current is passed through the bigger loop and the smaller loop is rotated about its diameter with constant angular velocity w. The current induced (in ampere) in the smaller loop will be :
Options
A.
× 10-9 cosωt
B.πω× 10-9 sinωt
C.
× 10-9 sinωt
D.πw × 10-9 sinωt
Solution
E = π × 10-9 ωsinωt
Also E = i × 2. ⇒ i =
× 10-9 sin ωt.
Also E = i × 2. ⇒ i =
Create a free account to view solution
View Solution FreeMore ElectroMagnetic Induction Questions
A metallic rod of length ′l′ is tied to a string of length 2l and made to rotate with angular speed ω ...A square loop of area 2.5 × 10-3m2 and having 100 turns with a total resistance of 100Ω is moved out of a unif...The time constant of an inductance coil is 2.0 × 10-3 s. When a 90Ω resistance is joined in series, the time c...A wire of fixed length is wound on a solenoid of length ′l′ and radius ′r′. Its self inductance ...If a current of 2A give rise a magnetic flux of 5 × 10-5 weber/turn through a coil having 100 turns, then the magne...