Basic Electrical Engineering Practice Test 8

1. Find the coupling coefficient if the Mutual inductance is 20H, the inductance of coil 1 is 2H and the inductance of coil 2 is 8H.

2. What is the power in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?

3. If the current in one coil becomes steady, the current in neighbouring coil is?

4. Find the average value of current when the current that are equidistant are 4A, 5A and 6A.

5. What is the correct relation between the peak value and peak to peak value for a sinusoidal waveform?

6. The flux linkage in coil 1 is x and it has 500 turns and the current in coil 2 is 2A, calculate the value of x if the mutual inductance is 750H.

7. The types of inductors are ____________

8. Calculate the number of revolutions if the frequency is 15kHz and the paired poles are 50.

9. What is the type of current obtained by finding the square of the currents and then finding their average and then fining the square root?

10. The phenomenon due to which there is an induced current in one coil due to the current in a neighbouring coil is?