Alternating CurrentHard
Question
The graph shows variation of I with f for a series R-L-C network. Keeping L and C constant. If R decreases :-
(a) Maximum current (Im) increases
(b) Sharpness of the graph increases
(c) Quality factor increases
(d) Band width increases
(a) Maximum current (Im) increases
(b) Sharpness of the graph increases
(c) Quality factor increases
(d) Band width increases
Options
A.a, b, c
B.b, c, d
C.c, d, a
D.All
More Alternating Current Questions
The self inductance of a choke coil is 10 mH. when it is connected with a 10 V D.C. source, then the loss of power is 20...The power factor of L-R circuit is :...Choke coil works on the principle of :-...In an AC circuit the maximum value of voltage is 423 volt, Its effective voltage is :-...A coil has an inductance of 0.7 henry and is joined in series with a resistance of 220 Ω. When the alternating emf ...