Home
Class 10
PHYSICS
On what principle is an electric bulb ...

On what principle is an electric bulb based?

Text Solution

Verified by Experts

Heating effect of current
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    KUMAR PRAKASHAN|Exercise VALUE BASED QUESTIN WITH ANSWERS|15 Videos

  • ELECTRICITY

    KUMAR PRAKASHAN|Exercise PRACTICAL SKILL BASED QUESTION WITH ANSWERS|20 Videos

  • ELECTRICITY

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS AND ANSWERS (Choose the correct option from those given below each question: )|55 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    KUMAR PRAKASHAN|Exercise VALUE BASED QUESTIONS WITH ANSWERS|15 Videos

Similar Questions

Explore conceptually related problems

What is the principle of an electric motor ?

A potential difference of 100 V is applied across an electric bulb marked 40 W. 200 V. The power consumed in the bulb is . …………….. .

Explain how the heating effect of electric current is utilized in an electric bulb (called incandescent lamp) to produce light.

On which principle does the electric generator work ?

An electric heater and an electric bulb are rated 500W. 220V and 100W, 220V respectively. Both are connected in series to a 220V d.c. mains. Calculate the power consumed by (i) the heater ana (ii) electric bulb.

If the current in an electric bulb increases by 1 %, what will be the change in the power of a bulb ? [Assume that the resistance of the filament of a bulh remains constant]

From which law and principle electric field by electric dipole can be obtained ?

Name one electric appliance working on the principle of heating effect of electric current.

Assertion: In series combination of electric bulbs th ebulb of lower power emits more light than that of higher power bulb. Reason: The lower power bulb in series gets more current than the higher power bulb.

Why is much less heat generated in long electric cables than in the filament of an electric bulb?

KUMAR PRAKASHAN-ELECTRICITY-OBJECTIVE QUESTIONS AND ANSWERS (Answer the following questions as directed (Miscellaneous):)
  1. 400 J of heat is produced in 4 s in a 4.0ohm resistor. Find the potent...

    Text Solution

    |

  2. What is the commercial unit of electrical energy?

    Text Solution

    |

  3. On what principle is an electric bulb based?

    Text Solution

    |

  4. In a circuit, two resistors of resistances 5 Omega and 10 Omega are co...

    Text Solution

    |

  5. Write the reletion between resistance R of the filament of a bulb, its...

    Text Solution

    |

  6. Which of the following bulbs has more resistance? (a) A 220V, 100W b...

    Text Solution

    |

  7. Find the minimum resistance that can be made using five resistors, eac...

    Text Solution

    |

  8. How does the resistance (R) of a wire depend upon its radius (r)?

    Text Solution

    |

  9. An ammeter has a range (0 - 3A) and there are 30 divisions on its scal...

    Text Solution

    |

  10. In a voltmeter there are 20 divisions between 0 mark and 0.5 V mark....

    Text Solution

    |

  11. To verify the Ohm.s law a circuit diagram was drawn by a student as sh...

    Text Solution

    |

  12. Four students connect 4 cells of 1.5 V each to get a battery of voltag...

    Text Solution

    |

  13. Which of the following statements is correct? (a) one volt is one j...

    Text Solution

    |

  14. Keeping the resistance constant, the potential difference applied acro...

    Text Solution

    |

  15. Keeping the potential difference constant, the resistance of a circuit...

    Text Solution

    |

  16. A potential difference of 10 V is needed to make a current of 0.02 A f...

    Text Solution

    |

  17. A current of 200 mA flows through a 4 kOhm resistor. What is the poten...

    Text Solution

    |

  18. The electrical resistivities of four materials A, B, C and D are given...

    Text Solution

    |

  19. The equivalent resistance of a series combination of two resistors is ...

    Text Solution

    |

  20. An electric lamp is labelled 12 V, 36 W. This indicate that it should ...

    Text Solution

    |