Advertisements
Advertisements
प्रश्न
State two factors on which the magnitude of induced e.m.f. in a coil depend.
Advertisements
उत्तर
- The change in magnetic flux.
- Rate of change in magnetic flux.
APPEARS IN
संबंधित प्रश्न
- Describe briefly one way producing an induced e.m.f?
- State one factor that determines the magnitude of induced e.m.f. in part (a) above.
- What factor determines the direction of induced e.m.f. in part (a) above?
The instantaneous magnetic flux in a circuit is `phi=4t^2-4t+1`. The total resistance of circuit is 15 Ω. At t = 2s, the induced current in circuit is ____________.
A coil of 25 turns is pulled in 0.05 s between the poles of a magnet, where its area includes `21 xx106-6 "Wb" "to" 1 xx 10^-6 "Wb"`. The average e.m.f. is ______.
The laws of induction were given by ______.
Two vectors `vec"A"` and `vec"B"` have equal magnitudes. If magnitude of `vec"A"` + `vec"B"` is equal to two times the magnitude of `vec"A"` - `vec"B"`, then the angle between `vec"A"` and `vec"B"` will be ______.
For which angle between two equal vectors `vec"A"` and `vec"B"` will the magnitude of the sum of two vectors be equal to the magnitude of each vector?
Under what condition is an electric current induced in a coil?
What does Faraday’s First Law or Neumann’s law state about the magnitude of induced emf?
What is \[N\Phi_B\] called, and what is its unit?
In Fleming’s Right-Hand Rule, which finger points in the direction of motion of the conductor?
