The example of non-ohmic resistance is ______.
[3] Current Electricity
Chapter: [3] Current Electricity
Concept: undefined >> undefined
Appliances based on heating effect of current work on ______.
[3] Current Electricity
Chapter: [3] Current Electricity
Concept: undefined >> undefined
Ampere’s circuital law states that ______.
[4] Moving Charges and Magnetism
Chapter: [4] Moving Charges and Magnetism
Concept: undefined >> undefined
Ampere’s circuital law is equivalent to ______.
[4] Moving Charges and Magnetism
Chapter: [4] Moving Charges and Magnetism
Concept: undefined >> undefined
The magnetic field around a long straight current carrying wire is ______.
[4] Moving Charges and Magnetism
Chapter: [4] Moving Charges and Magnetism
Concept: undefined >> undefined
A long solenoid has a radius a and number of turns per unit length n. If it carries a current i, then the magnetic field on its axis is directly proportional to ______.
[4] Moving Charges and Magnetism
Chapter: [4] Moving Charges and Magnetism
Concept: undefined >> undefined
Which of the following is the correct definition of ampere?
[4] Moving Charges and Magnetism
Chapter: [4] Moving Charges and Magnetism
Concept: undefined >> undefined
When the current in a coil changes from 2 amp. to 4 amp. in 0.05 sec., an e.m.f. of 8 volt is induced in the coil. The coefficient of self inductance of the coil is ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
Two coils of self inductances 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
The coefficient of self inductance of a solenoid is 0.18 mH. If a core of soft iron of relative permeability 900 is inserted, then the coefficient of self inductance will become nearly ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
Two solenoids of same cross-sectional area have their lengths and number of turns in ratio of 1 : 2 both. The ratio of self-inductance of two solenoids is ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
When current i passes through an inductor of self-inductance L, energy stored in it is 1/2. L i2. This is stored in the ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
A coil is wound on a frame of rectangular cross-section. If all the linear dimensions of the frame are increased by a factor 2 and the number of turns per unit length of the coil remains the same, self-inductance of the coil increases by a factor of ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
The self-inductance associated with a coil is independent of ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
The self-inductance of a coil is a measure of ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
Choke coil works on the principle of ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
Production of induced e.m.f. in a coil due to the changes of current in the same coil is ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
The self-inductance associated with a coil is independent of ______.
[6] Electromagnetic Induction
Chapter: [6] Electromagnetic Induction
Concept: undefined >> undefined
With increase in frequency of an A.C. supply, the inductive reactance ______.
[7] Alternating Current
Chapter: [7] Alternating Current
Concept: undefined >> undefined
With increase in frequency of an A.C. supply, the impedance of an L-C-R series circuit ______.
[7] Alternating Current
Chapter: [7] Alternating Current
Concept: undefined >> undefined
