physics

posted by .

a mettallic rod of lenght l is rotated with speeed v in uniform magnetic field. find induced current if r is resistance.

  • physics -

    v is not a rotation (angular) speed; it is a linear speed. There is zero current unless there is a closed circuit. All you mention is a rod

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that …
  2. physics

    A thin 2.82 m long copper rod in a uniform magnetic field has a mass of 44.2 g. When the rod carries a current of 0.238 A, it floats in the magnetic field. The acceleration of gravity is 9.81 m/s2 . What is the field strength of the …
  3. PHYSICS

    A thin 2.82 m long copper rod in a uniform magnetic field has a mass of 44.2 g. When the rod carries a current of 0.238 A, it floats in the magnetic field. The acceleration of gravity is 9.81 m/s2 . What is the field strength of the …
  4. Physics

    The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find …
  5. Physics

    A circular loop of wire with radius 0.0450 m and resistance 0.154 R is in a region of spatially uniform magnetic. The magnetic field is directed out of the plane. The magnetic field has an initial value of 7.89 T and is decreasing …
  6. Physics

    An infinitely long wire carries a current I=100A. Below the wire a rod of length L=10cm is forced to move at a constant speed v=5m/s along horizontal conducting rails. The rod and rails form a conducting loop. The rod has resistance …
  7. Physics Elena Help pls

    An infinitely long wire carries a current I=100amp . Below the wire a rod of length L=10cm is forced to move at a constant speed v=5m/s along horizontal conducting rails. The rod and rails form a conducting loop. The rod has resistance …
  8. magnetism

    infinitely long wire carries a current I100A. Below the wire a rod of length L 10cm is forced to move at a constant speed v=5m/s long horizontal conducting rails. The rod and rails form a conducting loop. The rod has resistance of …
  9. Physics

    A thin, 8.3 m long copper rod in a uniform magnetic field has a mass of 68 g. When the rod carries a current of .343 A, it floats in the magnetic field. What is the field strength of the magnetic field?
  10. electromagnetism

    An infinitely long wire carries a current I=100A. Below the wire a rod of length L=10cm is forced to move at a constant speed v=5m/s along horizontal conducting rails. The rod and rails form a conducting loop. The rod has resistance …

More Similar Questions