ElectroMagnetic InductionHard
Question
Air cored choke coil and electric bulb are connected in series with A.C. mains. A soft iron rod is inserted in coil then the intensity of electric bulb will :-
Options
A.decrease
B.increase
C.fluctuate
D.remain unchanged
More ElectroMagnetic Induction Questions
Which of the following is correct for periodic electromagnetic induction :-...In the LR circuit shown, what is the variation of the current I as a function of time ? The switch is closed at time t =...A metal rod of resistance 20 Ω is fixed along a diameter of conducting ring of radius 0.1 m and lies in x-y plane. ...AB and CD are fixed conducting smooth rails placed in a vertical plane and joined by a constant current source at its up...The power factor of the circuit is . The capacitance of the circuit is equal to...