emi

Related Questions

• The magnetic flux linked with a coil at any instant ‘t’ is given by $\phi = 5t^3 – 100t + 300$, the e.m.f. induced in the coil at t = 2 second is

  ---

• Armature current in dc motor will be maximum when

  ---

• Two circuits have mutual inductance of 0.1 H. What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to 20 A in 0.02 s

  ---

• A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T. The normal to the plane of the coil makes an angle of 60° with the direction of the magnetic field. The magnetic flux linked with the coil is

  ---

• If a current of 3.0 amperes flowing in the primary coil is reduced to zero in 0.001 second, then the induced e.m.f. in the secondary coil is 15000 volts. The mutual inductance between the two coils is

  ---