Home
Class 12
PHYSICS
A lamp of 100 W and a heater of 1 kW are...

A lamp of 100 W and a heater of 1 kW are in simultaneous use for 10 hours. The units of electricity consumed according to the meter in the house is:

A

10

B

9

C

11

D

1

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

There are 5 tube-lights each of 40 W in a house. These are used on an average for 5 hours per day. In addition, there is an immersion heater of 1500 W used on an average for 1 hour per day. The nmber of units of electricity are consumed in a month is

There are 5 tube-lights each of 40W in a house. These are used on an average for 5 hours per day. In addition,there is an immersion heater of 1500 W used on an average for 1 hour per day. The number of units of electricity are consumed in a month is

An electric lamp of 100 watt is used for hours per day. The 'units' of energy consumed in one day by the lamp is

A 100 W electric bulb is used for 10 hours a day. How many units of energy are consumed in 30 days?

A bulb of 100 W is operating for 6 hours a day. Find the units of energy consumed in 7 days.

Calculate the units of energy consumed by 100W electric bulb in 5 hours,

ALLEN-CURRENT ELECTRICITY-All Questions
  1. An electric bulb is rated at 220V, 100W. What is its resistance?

    Text Solution

    |

  2. A heating coil can heat the water of a vessel from 20^(@)C to 60^(@)C ...

    Text Solution

    |

  3. A lamp of 100 W and a heater of 1 kW are in simultaneous use for 10 ho...

    Text Solution

    |

  4. The temperature of the cold junction of thermo-couple is 0^(@)C and th...

    Text Solution

    |

  5. In the circuit shown in Fig.6.2, the heat produced in 5Omega resistor,...

    Text Solution

    |

  6. If two bulbs of wattage 25 and 100 respectively each rated at 220 volt...

    Text Solution

    |

  7. If the potential difference across the ends of a conductor is doubled,...

    Text Solution

    |

  8. When three identical bulbs are connected in series. The consumed power...

    Text Solution

    |

  9. As the temperature of hot junction increases, the thermo e.m.f.

    Text Solution

    |

  10. Two resistors having equal resistances are joined in series and a cur...

    Text Solution

    |

  11. If the power dissipated in 5Omega is 20W then power dissipated in 4Ome...

    Text Solution

    |

  12. A bulb is connected first with DC and the then AC of same voltage then...

    Text Solution

    |

  13. Two electric bulbs whose resistances are in the ratio of 1:2 are conne...

    Text Solution

    |

  14. A 60 watt bulb operates on 220 V supply. The current flowing through t...

    Text Solution

    |

  15. Two heater wires, made of the same material and having the same length...

    Text Solution

    |

  16. A, B, C are identical bulbs. How does the brightness of A and B change...

    Text Solution

    |

  17. How many calories of heat will be approximately developed in a 210 W e...

    Text Solution

    |

  18. The smallest temperature difference that can be measured with a combin...

    Text Solution

    |

  19. Two bulbs of (40W 200V) and (100W 200V). Then correct relation for the...

    Text Solution

    |

  20. A 100 W 200 V bulb is connected to a 160 V power supply. The power con...

    Text Solution

    |