6.In the case of dc motor, if the current flowing through the armature coil minimum induced emf is

7.A 50 mH coil carries a current of 2 A, the energy stored in joule is:

8.The induced e. m. f. in a coil rotating in a uniform magnetic field depends upon

9.What is the mutual inductance of coil and solenoid if a solenoid of length 0.50 m and with 5000 turns of wire has a radius 4 cm and a coil of 700 turns is wound on the middle part of the solenoid?

10.In step-up transformer the turn ratio is 1:2. A leclanche cell (emf = 1.5V) is connected across the primary, the voltage developed in the secondary would be: