Home
Class 12
PHYSICS
When 1A is passed through three coils A,...

When `1A` is passed through three coils `A,B,C` in series the voltage drops are respectively 6,3 and 8 volt on direct current source and 7,5 and 10 volt on Alternating current source
Power dissipated in coil `C`

A

10 watt

B

6 watt

C

5 watt

D

8 watt

Text Solution

Verified by Experts

The correct Answer is:
D
`lt P gt - i_("rms"^(2) R_(c )`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - I (H.W)|23 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - II(H.W)|13 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - V|83 Videos

  • ATOMIC PHYSICS

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

Similar Questions

Explore conceptually related problems

When 1A is passed through three coils A,B,C in series the voltage drops are respectively 6,3 and 8 volt on direct current source and 7,5 and 10 volt on Alternating current source Power factor of coil B , will be

When 1A is passed through three coils A,B,C in series the voltage drops are respectively 6,3 and 8 volt on direct current source and 7,5 and 10 volt on Alternating current source Power factor of whole circuit when atlernating current flow

A coil and a bulb are connected in series with a 12 volt direct current source. A soft iron core is now inserted in the coil. Then

In a series LR circuit, the voltage drop across inductor is 8 volt and across resistor is 6 volt. Then voltage applied and power factor of circuit respectively are:

An alternating current source of frequency 100 Hz is joined to a combination of a resistance, a capacitance and a coil in series. The potential difference across the coil, the resistance and the capacitor is 46, 8 and 40 volt respectively. The electromotive force of alternating current source in volt is

The resistance of a coil for direct current is 10 ohm. When a.c. is sent through the same coil, its resistance would be

A bulb is designed to operate at 12 volts constant direct current.If this bulb is connected to an alternating current source and gives same brightness.What would be the peak voltage of the source?

A coil takes a current of 2.0 ampere and 200 watt power from an alternating current source of 220 volt, 50 hertz. Calculate resistance and inductance of the coil.

The ratio of turns in the primary and secondary coils of a transformer is 1:15 . If the voltage and current in the primary coil are 12 volt and 30 ampere respectively then what will be the voltage and current in secondary coil?

A choke coil has negligible resistance. The alternating potential drop across it is 220 volt and the current is 5 mA . The power consumed is

NARAYNA-ALTERNATING CURRENT-LEVEL - VI
  1. A constant voltage at a frequency of 1 MHz is applied to an inductor i...

    Text Solution

    |

  2. When 1A is passed through three coils A,B,C in series the voltage drop...

    Text Solution

    |

  3. When 1A is passed through three coils A,B,C in series the voltage drop...

    Text Solution

    |

  4. When 1A is passed through three coils A,B,C in series the voltage drop...

    Text Solution

    |

  5. A series circuit connected across a 200 V, 60 Hz line consists of a ca...

    Text Solution

    |

  6. A series circuit connected across a 200 V, 60 Hz line consists of a ca...

    Text Solution

    |

  7. A series circuit connected across a 200 V, 60 Hz line consists of a ca...

    Text Solution

    |

  8. The maximum values of the phasors (currents and voltage) in AC circuit...

    Text Solution

    |

  9. The maximum values of the phasors (currents and voltage) in AC circuit...

    Text Solution

    |

  10. The maximum values of the phasors (currents and voltage) in AC circuit...

    Text Solution

    |

  11. A series R-L-C circuit has R = 100 ohm. L = 0.2 mH and C = (1)/(2) mu ...

    Text Solution

    |

  12. A series R-L-C circuit has R = 100 ohm. L = 0.2 mH and C = (1)/(2) mu ...

    Text Solution

    |

  13. A series R-L-C circuit has R = 100 Ohm. L = 0.2 mH and C = (1)/(2) mu ...

    Text Solution

    |

  14. The potential difference across a 2 H inductor as a function of time i...

    Text Solution

    |

  15. The potential difference a 2 H inductor as a function of time is shown...

    Text Solution

    |

  16. In the given arrangement the square loop of area 10 cm^(2) rotates wit...

    Text Solution

    |

  17. In the given arrangement the square loop of area 10 cm^(2) rotates wit...

    Text Solution

    |

  18. In the given arrangement the square loop of area 10 cm^(2) rotates wit...

    Text Solution

    |

  19. A 20 V 5 watt lamp is used in ac main 220 V and frequency 50 c.p.s. ...

    Text Solution

    |

  20. A 20 V 5 watt lamp is used in ac main 220 V and frequency 50 c.p.s. ...

    Text Solution

    |