Home
Class 10
PHYSICS
An incandescent lamp of resistance 80 Om...

An incandescent lamp of resistance `80 Omega` draws a current of `0.75 A`. Find the line voltage.

Text Solution

Verified by Experts

The correct Answer is:
60 V

`V = IR = (0.75 A)(80 Omega) = 60 V`.
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    PRADEEP|Exercise (Exemplar)Multiple Choice|18 Videos
  • ELECTRICITY

    PRADEEP|Exercise (Mock Test)Sec -A|21 Videos
  • ELECTRICITY

    PRADEEP|Exercise Value Based Question|4 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    PRADEEP|Exercise Mock Test|21 Videos

Similar Questions

Explore conceptually related problems

An electric bulb of resistance 400 Omega , draws a current of 0.5 A . Calculate the power of the bulb and the potential difference at its ends.

Seven identical lamps of resistance 220 Omega each are connected to a 220 V line as shown in Then the reading in the ammeter will be

In a step up transformer, the turn ratio is 1:10. A resistance of 200 Omega connected across the secondary draws a current of 0.5 A. What is the primary voltage?

An incandescent lamp draws a current of 0.5 ampere. How many electrons are passing through the filament of lamp every hour ?

Assuming that the silicon diode having resistance of 20 Omega , the current through the diode is (knee voltage 0.7 V)

A lamp draws a current of 2.0 A. Find the charge in coulombs used by the lamp.

In common emitter transistor, the input resistance is 200Omega and bad resistance is 40kOmega . If current gain is 80 then voltage gain is

PRADEEP-ELECTRICITY-Problem For Practice
  1. A current of 0.5 A is drawn by a filament of an electric bulb for 10 m...

    Text Solution

    |

  2. How much work is done in moving a charge of 2 C across two points havi...

    Text Solution

    |

  3. An incandescent lamp of resistance 80 Omega draws a current of 0.75 A....

    Text Solution

    |

  4. A current of 0.2 A flows through a conductor of resistance 4.5 Omega. ...

    Text Solution

    |

  5. A bulb of resistance 400 Omega is connected to 220 V mains. Calculate ...

    Text Solution

    |

  6. An electric heater draws a current of 5 A when connected to 220 V main...

    Text Solution

    |

  7. (a) How much current will an electric bulb draw from a 220 V source, i...

    Text Solution

    |

  8. The potential difference between the terminals of an electric heater i...

    Text Solution

    |

  9. A 4 Omega wire is doubled on it. Calculate the new resistance of the w...

    Text Solution

    |

  10. When a potential difference of 2 V is applied across the ends of a wir...

    Text Solution

    |

  11. What should be the length of a nichrome wire of resistance 4.5 Omega, ...

    Text Solution

    |

  12. A negligibly small current is passes through a wire of length 15 m and...

    Text Solution

    |

  13. A metal wire of resistivity 64 xx 10^-6 ohm cm and length 198 cm has a...

    Text Solution

    |

  14. Calculate the resistivity of the material of a wire 1.0 m long, 0.4 mm...

    Text Solution

    |

  15. The resistivity os copper is 1.76 xx 10^-8 ohm m. The radius of the wi...

    Text Solution

    |

  16. A resistance wire made from German silver has a resistance of 4.25 Ome...

    Text Solution

    |

  17. Resistance of a metal wire of length 1 m is 26 Omega at 20^@ C. If the...

    Text Solution

    |

  18. Calculate the amount of charge that would flow in 2 hours through the ...

    Text Solution

    |

  19. A cylinder of a material is 10 cm long and has a cross-section of 2 cm...

    Text Solution

    |

  20. A piece of wire of resistance 20 Omega is drawn so that its length is ...

    Text Solution

    |