Home
Class 12
PHYSICS
A straight wire of length L is bent into...

A straight wire of length `L` is bent into a semicircle. It is moved in a uniform magnetic field with speed `v` with diameter perpendicular to the field. The induced emf between the ends of the wire is

A

BLv

B

2BLv

C

`2piBLv`

D

`(2BvL)/(pi)`

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS|Exercise comprehensive|5 Videos
  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS|Exercise single correct|8 Videos
  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS|Exercise Multiple correct Answer Type|3 Videos
  • ELECTROMAGENTIC INDUCTION

    CENGAGE PHYSICS|Exercise QUESTION BANK|40 Videos
  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS|Exercise dpp 3.3|15 Videos

Similar Questions

Explore conceptually related problems

A conducting ring is placed in a uniform magnetic field with its plane perpendicular to the field . An emf is induced in the ring if

A copper wire bent in the shape of a semicircle of radius r translates in its plane with a constant velocity v. A uniform magnetic field B exists in the direction perpendicular to the plane of the wire. Find the emf induced between the ends of the wire if (a) the velocity is perpendicular ot the diameter joining free ends, (b) the velocity is parallel to this diameter.

A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T. The velocity of the conductor is 15ms^(-1) and is directed perpendicular to the field. The emf induced between the two ends of the conductor is

A straight wire of length 0.5 metre and carrying a current of 1.2 ampere is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire , the force acting on the wire is

A straight wire of length 1 m, and carrying a current of 1.8 A, is placed in a uniform magnetic field of induction 2T. If the magntic field is perpendicular to the length of the wire, then the force acting on the wire is

A wire loop is rotated in a uniform magnetic field about an an axis perpendicular to the field. The direction of the current induced in the loop reverses once each

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

2 m long wire moving with v = 1 ms^(-1) in magnetic field intensity 0.5 Wb m^(-2) perpendicular to the field. The induced emf is':