Home
Class 12
PHYSICS
A 280 ohm electric bulb is connected to ...

A `280` ohm electric bulb is connected to `200V` electric line. The peak value of current in the bulb will be

A

About one ampere

B

Zero

C

About two ampere

D

About four ampere

Text Solution

Verified by Experts

The correct Answer is:
A
`i_(max)=200/280=5/7 A`, So `i_(0)=i_(max)xxsqrt(2)=5/7xxsqrt(2)~~1A`.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    A2Z|Exercise AIIMS Questions|26 Videos

  • ATOMIC PHYSICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

A 40Omega electric heater is connected to a 200V, 50Hz main supply. The peak value of electric current flowing in the circuit is approx.

A light bulb has the rating 200 W 220 V. Find the peak value of current.

An electric bulb is connected to a 220 V generator. The current is 0.50 A . What is the power of the bulb ?

A 40Omega electric heater is connected to a 200 V , 50 Hz mains supply. The peak value of electric current flowing in the circuit is approximately

An electric bulb converts electrical energy into

An electric bulb is connected to a 220V power supply line. If the bulb draws a current of 0.5A, calculate the power of the bulb.

A bulb rated at (100 W – 200 V ) is used on a 100 V line. The current in the bulb is

Three electric bulbs of rating 60 W each are joined in series and then connected to electric mains. The power consumed by these three bulbs will be

A2Z-ALTERNATING CURRENT-Section D - Chapter End Test
  1. A 280 ohm electric bulb is connected to 200V electric line. The peak v...

    Text Solution

    |

  2. An AC source is rated at 220V, 50 Hz. The time taken for voltage to ch...

    Text Solution

    |

  3. If the value of potential in an ac, circuit is 10 V, then the peak val...

    Text Solution

    |

  4. The maximum value of AC voltage in a circuit is 70V. Its r.m.s. value ...

    Text Solution

    |

  5. If instantaneous current is given by i=4 cos(omega t + varphi) amperes...

    Text Solution

    |

  6. In an AC circuit, peak value of voltage is 423 volts. Its effective vo...

    Text Solution

    |

  7. The power factor of an AC circuit having resistance (R) and inductance...

    Text Solution

    |

  8. An inductor of inductance L and ressistor of resistance R are joined i...

    Text Solution

    |

  9. Alternating current can not be measured by D.C. Ammeter because

    Text Solution

    |

  10. In a LCR circuit capacitance is changed from C to 2C. For the resonant...

    Text Solution

    |

  11. In an LCR series a.c. Circuit the voltage across each of hte component...

    Text Solution

    |

  12. For the circuit shown in the figure, the current through the inductor ...

    Text Solution

    |

  13. In a series LCR circuit, the voltage across the resistance, capacitanc...

    Text Solution

    |

  14. An ideal choke takes a current of 10 A when connected to an ac supply ...

    Text Solution

    |

  15. A direct current of 5 amp is superimposed on an alternating current I=...

    Text Solution

    |

  16. A group of electric lamps having a total power rating of 1000 watt is ...

    Text Solution

    |

  17. In a LCR circuit having L=8.0 Henry, C=0.5 mu F and R=100 ohm in serie...

    Text Solution

    |

  18. An alternating current source of frequency 100 Hz is joined to a combi...

    Text Solution

    |

  19. A 10 ohm resistance, 5 mH coil and 10mu F capacitor are joined in seri...

    Text Solution

    |

  20. A resistor R, an inductor L and a capacitor C are connected in series ...

    Text Solution

    |