Home
Class 12
PHYSICS
A coil of inductive reactance 31 Omega h...

A coil of inductive reactance `31 Omega` has a resistance of `8 ohm`. It is placed in series with a condenser of capacitive reactance `25 Omega`. The combination is connected to an `ac` source of `110 V`. The power factor of the circuit is

A

0.33

B

0.56

C

0.64

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-4|16 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise ASSERTION & REASON|6 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-2 (H.W)|16 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL-II(H.W)|14 Videos

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -4|15 Videos

Similar Questions

Explore conceptually related problems

A coil of inductive reactance 31 Omega has a resistance of 8 Omega . It is placed in series with a condenser of capacitative reactance 25 Omega . The combination is connected to an a.c. source of 110 volt. The power factor of the circuit is

A circuit consists of 3 ohm resistance and 4 ohm reactance The power factor of the circuit is

Knowledge Check

  • A coil of inductive reactance 31 Omega has a resistance of 8 omega . It is placed in series with a condenser of capacitive reactance 25 Omega . The combination is connected to an ac source of 110 V . The power factor of the circuit is

    A
    `0.56`
    B
    `0.64`
    C
    `0.80`
    D
    `0.33`

  • A resistance of 300 Omega is connected in series with inductor of self-inductance 1 H and capacitor of capacitance 20 mF. This combination is connected to an AC source whose angular frequency is 100 rad/s. Impedance of the circuit is

    A
    200 `Omega`.
    B
    400 `Omega`.
    C
    500 `Omega`.
    D
    750 `Omega`.

  • A circuit has a resistance of 11 Omega , an inductive reactance of 25 Omega , and a capacitive resistance of 18 Omega . It is connected to an AC source of 260 V and 50 Hz . The current through the circuit (in amperes) is

    A
    `11`
    B
    `15`
    C
    `18`
    D
    `20`

    • Similar Questions

    Explore conceptually related problems

    An inductor of inductance 2H and a resistance of 10 Omega are connected in series to an ac source of 1109 V, 60 Hz. The current in the circuit will be

    The impedance of a series circuit consists of 3 ohm resistance and 4 ohm reactance. The power factor of the circuit is :

    A coil having a resistance of 50.0 Omega and an inductance of 0.5 H is connected to an AC source of 110 , v, 50Hz . The rms current in the circuit is

    An a.c. circuit an inductive reactance of 80Omega and a pure resistace of 60 Omega . What is the impendance of the circuit?

    The reactance of the coil is 10Omega and its resistance is 10Omega . It is connected to an A.C. source of e.m.f. 220V . The peak value of the current in the circuit is

    Home
    Profile