Magnetic Effect of Electric Current Quiz 6

Which of the following statement is true ?

Which of the following statements is correct ?

Which of the following statements is, are correct?

Which of the following statements are true ?

Which of the following statements is correct.

If the angle between moving charge and magnetic field is $\theta,$ the magnetic force acting on the charge is given by …………….

Find the length of the conductor which is moving with a speed of 10 m/s in the direction perpendicular to the direction of magnetic field of induction 0.8T, if it induces an emf of 8V between the ends of the conductor.

The essential difference between an AC generator and a DC generator is that

If ΔΦ/Δt is the rate of change of flux and I is the current then the electric power is …………

………….. current has some frequency

The rms value of current is 110 $\sqrt2$ A then its peak value of current is ………

The device used for producing electric current is .................

The strength of magnetic field inside a long current carrying straight solenoid is

The direction of induced current is given by

The insulation colour of earth wire is