Alternating CurrentHard
Question
The resistance that must be connected in series with inductance of 0.2 H in order that the phase difference between current and e.m.f. may be 45o when the frequency is 50 Hz, is:-
Options
A.6.28 ohm.
B.62.8 ohm.
C.628 ohm.
D.31.4 ohm.
More Alternating Current Questions
r.m.s. value of current i = 3 + 4 sin (ω t + π/3) is:...The current I = I0 sin(ωt − π/2) is flowing in a variable current circuit. The potential E = E0 sinω...A current in circuit is given by i = 3 + 4 sin ωt. Then the effective value of current is :...200 Ω resistance and 1H inductance are connected in series with an A.C. circuit. The frequency of the source is Hz....In a circuit the frequency is ƒ = 1000/2π Hz and the inductance is 2 henry, then the reactance will be :...