For the following questions answer them individually
An inductor with a ferromagnetic core is supplied from a sinusoidal voltage source with frequency 'f'. The current drawn by the inductor will be
Which one of the following is a speed control method of three phase squirrel cage induction motor?
In the circuit as shown, voltage measured between A, B, is found to be 70 V. Value of M is
Two coupled coills, connected in a series have and equivalent inductance of 16 mH or 8 mH depending on the connection. The mutual inductance between the coil is
Which one of the following is a valid value of coefficien of coupling between two inductors?