A series RLC circuit resonates at 1 MHz. At frequency of l.l MHz, the circuit impedance will be :

(a)   capacitive
(b)   inductive
(c)   resistive
(d)   none of these

Ans: B


In band pass filter, the series element is :

(a)  capacitive
(b)  inductive
(c)  scries combination of L and C
(d)  shunt combination of L and C

Ans: C

The phase angle for a series RC circuit may be computed as the angle between the following phasors.

(a) resistance, impedance
(b) resistance, rectance
(c) resistance, impedance
(d) none of these

Ans: A

The power factor for a circuit is of the order of ________.

(a)  0.30
(b)  0.40
(c)  0.50
(d)  0.60

Ans: D

In a band stop filter, the shunt element is :

(a) capacitive
(b) inductive
(c) series combination of L and C
(d) shunt combination of L and C

Ans: C

The time constant of the capacitance circuit is defined as the time during which voltage across the capacitor

(a) falls to 36.8% of its final steady value
(b) rises to 63.2% of its final steady value
(c) rises to 38.6% of its final steady value
(d) none of the above

Ans: B

In band pass filter, the shunt element is :

(a)   capacitive
(b)   inductive
(c)   series combination of L and C
(d)   shunt combination of L and C

Ans: D