The inductance of a coil will increase under all the following conditions except

Related MCQs

• In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will
• A certain amount of current flows through a ring-shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil ?
• A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be
• The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the in ductance will be
• Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be
• In case all the flux from the current in coil 1 links with coil 2, the co-efficient of coupling will be
• When both the inductance and resistance of a coil are doubled the value of
• The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is_______Vs
• Higher the self-inductance of a coil,
• Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be