Home
Class 12
PHYSICS
The magnetic flux through a surface vari...

The magnetic flux through a surface varies with time as follows : `phi = 12t^2+7t+3` Here `phi` is in milliweber and `t` is in seconds. The induced emf at `t=5s` ?

A

338 mV

B

127 mV

C

105 mV

D

None of the above.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The magnetic flux linked with the coil varies with time as phi = 3 t^2 + 4t + 9 . The magnitude of induced emf at t = 2 second is

The normal magnetic flux passing through a coil changes with time according to the equation phi = 6t^2 - 5t + 1 . What is the magnitude of the induced current at t = 0.253 s and resistance 10 Omega ?

The position x of a particle varies with time t as x = at^(2) -bt^(3) . For what value of time acceleration is zero?

The magnetic flux phi (in weber) linked with a coil of resistance 10 Omega varies with time t (in second) as phi = 8t^2-4t+1 . The current induced in the coil at t = 0.1 sec is

The displacement of a particle is represented by following equation: s=3t^(3) +7t^(2) +5t +8 where is in metre and in second the acceleration of particle at s is

The x and y co-ordinates of a particle at any instant are x = 4t^2 + 7t and y = 5t where x, y are in metres and in seconds. The acceleration at t=5s is :

The magnetic flux linked with a coil varies as phi=3t^(2)+4t+9. Find the magnitude of the emf induced at t = 2S.