Home
Class 12
PHYSICS
A series LCR circuit is connected to an ...

A series LCR circuit is connected to an ac source of variable frequency. When the frequency is increased continuously, starting from a small value, the power factor

A

goes on increasing continuously

B

goes on decreasing continuously

C

becomes maximum at a particular frequency

D

remains constant

Text Solution

Verified by Experts

The correct Answer is:
C
becomes maximum at a particular frequency
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MTG GUIDE|Exercise NEET CAFE TOPICWISE PRATICE QUESTIONS (WATTLESS CURRENT)|1 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MTG GUIDE|Exercise NEET CAFE TOPICWISE PRATICE QUESTIONS (AC GENERATOR AND TRANSFORMER)|14 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MTG GUIDE|Exercise NEET CAFE TOPICWISE PRATICE QUESTIONS (SERIES LR AND CR CIRCUITS)|1 Videos

  • DUAL NATURE OF MATTER AND RADIATION

    MTG GUIDE|Exercise AIPMT/ NEET MCQs|30 Videos

  • ELECTROMAGNETIC WAVES

    MTG GUIDE|Exercise AIPMT/NEET(MCQs)|15 Videos

Similar Questions

Explore conceptually related problems

In a series LCR circuit, operated with an ac of angular frequency omega , the total impedance is

For an LCR series circuit with an aac source of angular frequency omega .

For an LCR circuit connected to the AC source match the following

(a) In a series LCR circuit connected across an AC source of variable frequency, obtain the expression for its impedance and draw a plot showing its variation with frequency of the AC source. (b) What is the phase difference between the voltages across inductor and the capacitor at resonance in the LCR circuit ? (c ) When and inductor is connected to a 200 V DC voltage, a current of 1Aflows trough it. when the same inductor is connected to a 200 V, 50 Hz AC source, only 0.5 A current flows. Explain, why ? Also, calculate the self inductance of the inductor.

A series LR circuit is connected to an ac source of frequency omega and the inductive reactance is equal to 2R. A capacitance of capacitive reactance equal to R is added in series with L and R. The ratio of the new power factor to the old one is

A variable frequency AC source is connected to a capacitor. Then on increasing the frequency

In a series LCR circuit resonance of frequency is the half of the frequency of source.The nature of the circuit is