## In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value__________?

A. will change the maximum value of current at resonance
B. will change the resonance frequency
C. will change the impedance at resonance frequency
D. will increase the selectivity of the circuit

## The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces__________?

A. the more heat than produced by A.C. when flowing through the same circuit
B. the same heat as produced by A.C. when flowing through the same circuit
C. the less heat than produced by A.C. flowing through the same circuit
D. none of the above

## Time constant of an inductive circuit_________?

A. increases with increase of inductance and decrease of resistance
B. increases with the increase of inductance and the increase of resistance
C. increases with the decrease of inductance and decrease of resistance
D. increases with decrease of inductance and increase of resistance

scroll to top