Home
Class 12
PHYSICS
A copper rod of length 2m is rotated wit...

A copper rod of length 2m is rotated with a speed of 10 rps, in a uniform magnetic field of T tesla about a pivot at one end. The magnetic field is perperndicular to the plane of rotation. Find the emf induced across its ends

Text Solution

Verified by Experts

`e=(1)/(2)B omega l^(2)=(1)/(2)B(2pi n)l^(2)=pi Bnl^(2)`
`e=3.14 xx 1 xx 10 xx 2 xx 2=125.6` volt
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE-IA|33 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE-IB|18 Videos

  • ELECTRIC FIELD AND POTENTIAL

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|32 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH SERIES|Exercise EXERCISE -II|20 Videos

Similar Questions

Explore conceptually related problems

A conductor of length 0.1m is moving with a velocity of 4m/s in a uniform magnetic field of 2T as shown in the figure. Find the emf induced ?

A copper disc of radius Im is rotated about its natural axis with an angular velocity 2 rad/sec in a uniform magnetic field of 5 tesla with its plane perpendicular to the field. Find the emf induced between the centre of the disc and its rim.

A conducting rod of length L rotates with angular speed omega in a uniform magnetic field of induction B which is perpendicular to its motion .The induceed emf developed between the two ends of the rod is

Obtain an expression for the emf induced across a conductor which is moved in a uniform magnetic field which is perpendicular to the plane of motion.