ElectroMagnetic InductionHard
Question
Alternating current is flowing in inductance L and resistance R. The frequency of source is 
. Which of the following statement is correct : -
. Which of the following statement is correct : -Options
A.for low frequency the limiting value of impedance is L.
B.for high frequency the limiting value of impedance is Lω.
C.for high frequency the limiting value of impedance is R.
D.for low frequency the limiting value of impedance is Lω.
Solution
Impedance = 
At low frequency ω → 0
so impedance → R
At high frequency ω → ∞
so impedance → ωL
At low frequency ω → 0
so impedance → R
At high frequency ω → ∞
so impedance → ωL
Create a free account to view solution
View Solution FreeMore ElectroMagnetic Induction Questions
An e.m.f. of 12 V is induced in a given coil when the current in it changes at the rate of 48 amp./min. The inductance o...A wheel with ten metallic spokes each 0.5.m long is rotated with a speed of 120 rev/min in a plane normal to the earth,s...Which type of losses does not occur in transformer :-...On reducing 2 ampere current in the primary to zero in 0.01 second, an emf of 1000 volts is induced in the Secondary coi...A 10 m. long copper wire while remaining in the east-west horizontal direction is falling down with a constant speed of ...