1.
Two 300 uH coils in series without mutual coupling have a total inductance of

2.
In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

3.
Which of the following circuit elements will oppose the change in circuit current?

4.
Which circuit element(s) will oppose the change in circuit current?

5.
The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as

6.
Reversing the field or the current will reverse the force on the conductor.

7.
The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is

8.
An open coil has

9.
Which of the following is unit of inductance?

10.
Which of the following is not a unit of inductance?

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