Home
Class 12
PHYSICS
If R(1) and R(2) are the resistances of ...

If `R_(1)` and `R_(2)` are the resistances of the filaments of 200 W and 100 W electric bulbs operated at 220 V, then `((R_1)/(R_2))` is

A

2

B

0.5

C

4

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEET MOCK TEST 4

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NEET MOCK TEST 8

    NTA MOCK TESTS|Exercise PHYSICS - SINGLE CHOICE|45 Videos

Similar Questions

Explore conceptually related problems

If R_(1) and R_(2) are respectively the filament resistances of a 200 watt bulb and 100 watt bulb designed to operate on the same voltage, then

An electric bulb is rated at 220V, 100W. What is its resistance?

Which has greater resistance : 1 kW electroheater or a 110 W filament bulb, both marked for 220V?

(a) How much current will an electric bulb draw from a 220 V source, if the resistance of the bulb filament is 1200 Omega ? (b) How much current will an electric heater draw from a 220 V source, if the resistance of the heater coil is 100 Omega ?

An electric bulb is rated 200 V and 100 W. When it is operated on 110V, the power consumed will be:

An electric bulb is rated 60 W , 220 V . The resistance of its filament is

NTA MOCK TESTS-NEET MOCK TEST 5-PHYSICS - SINGLE CHOICE
  1. Consider the situation shown in the figure. The wall is smooth but the...

    Text Solution

    |

  2. An engine is attahed to a wagon through a shock absorber of length 1.5...

    Text Solution

    |

  3. If R(1) and R(2) are the resistances of the filaments of 200 W and 100...

    Text Solution

    |

  4. If N(0) is the original mass of the substance of half - life period t(...

    Text Solution

    |

  5. A mass of 2kg is attached to the spring of spring constant 50Nm^(-1). ...

    Text Solution

    |

  6. A vehicle of mass m is moving on a rough horizontal road with momentum...

    Text Solution

    |

  7. Two coherent point sources S1 and S2 are separated by a small distance...

    Text Solution

    |

  8. In the figure shown below, an ideal gas is carried around the cyclic p...

    Text Solution

    |

  9. One litre of oxygen at a pressure of 1 atm and two litres of nitrogen ...

    Text Solution

    |

  10. A coil having 200 turns has a surface area of 0.15m^(2). A magnetic fi...

    Text Solution

    |

  11. A jet water, whose cross section is A strikes a wall making an angle t...

    Text Solution

    |

  12. A sound wave of frequency f propagating through air with a velocity c,...

    Text Solution

    |

  13. Two men A and B are carrying a uniform bar of length L on their should...

    Text Solution

    |

  14. A body is falling under gravity . When it loses a gravitational potent...

    Text Solution

    |

  15. Dimensional formula of magnetic field is :-

    Text Solution

    |

  16. Two particles are projected simultaneously in the same vertical plane,...

    Text Solution

    |

  17. The diagram of a logic circuit is given below. The output F of the cir...

    Text Solution

    |

  18. A fully charged capacitor has a capacitance C. It is discharged throug...

    Text Solution

    |

  19. The instantaneous current and volatage of an AC circuit are given by ...

    Text Solution

    |

  20. An object is approaching a convex lens of focal length 0.3m with a spe...

    Text Solution

    |