Home
Class 12
PHYSICS
[" A pair of coils of turns "n(1)" and "...

[" A pair of coils of turns "n_(1)" and "n_(2)" are kept close "],[" together.Current passing through the first is "],[" reduced at rate "r" and emf "3mV" is developed across "],[" the other coil.If the second coil carries current "],[" which is then reduced at the rate "2r" ,the emf "],[" produced across the first coil will be "],[[" (1) "(6n_(1))/(n_(2))mV_((2))(6n_(2))/(n_(1))mV," (3) "6mV," (4) "(3)/(2)mV]]

Promotional Banner

Similar Questions

Explore conceptually related problems

A Pair of coils of turns n_(1) and n_(2) are kept close together. Current passing through the first is reduced at r, and emf 3 mV is developed across the other coil. If the second coil carries current which is then reduced at the rate 2 r, the emf produced across the first coil will be

A Pair of coils of turns n_(1) and n_(2) are kept close together. Current passing through the first is reduced at r, and emf 3 mV is developed across the other coil. If the second coil carries current which is then reduced at the rate 2 r, the emf produced across the first coil will be

The current passing through a choke coil of 5H is decreasing at the rate of 2A/s. The e.m.f. developed across the coil is?

The current passing through a choke coil of 5H decreases at the rate of 2 ampere per second. The emf developed across the coil is

The current passing through a choke coil of 5 Henry is decreasing at the rate of 2 A//sec. The e.m.f. developing across the coil is

The current passing through a choke coil of 15 henry is decreasing at the rate of 0.2 ampere per second. The e.m.f. developed across the coil :

The current passing through a choke coil of 5 henry is decreasing at the rate of 2 ampere//sec . The e.mf. Developing across the coil is