Home
Class 12
PHYSICS
A heating element using nichrome connect...

A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What is the steady temperature of the heating element if the room temperature is `27^(@)C` ? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is `1.70xx10^(-4) C^(-1)`.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    SL ARORA|Exercise Problems From Competitive|18 Videos
  • CURRENT ELECTRICITY

    SL ARORA|Exercise Problems For Self|101 Videos
  • CHEMICAL EFFECT OF CURRENT

    SL ARORA|Exercise TYPE-B|5 Videos
  • ELECTRIC POTENTIAL AND ELECTRIC FLUX

    SL ARORA|Exercise Problems for self practive|61 Videos

Similar Questions

Explore conceptually related problems

A heating element using nichrome connected to a 230 V supply draws a initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What is the steady temperature of the heating elemtn if the room temperature is 27.0^(@)C ? Temperature coefficient of resistance of nichrome of nichrome averaged over the temperature range involved is 70xx10^(-4)C^(-1)

A heating element using nichrome connected to a 115 V supply draws a current of 1.6A which settles after a few seconds to a steady value of 1.4 A. What is the steady temperature of the heating element if the room temperature is 30^@C ? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1.7xx10^(-4).^(@)C^(-1) .

An electric toaster uses nichrome for its heating element. When a negligibly small current passes through it. It resistance at room temperature (27.0^@C) is found to be 75.3Omega . When the toaster is connected to a 230 V supply, the current settles, after a few seconds, to a steady value of 2.68 A . What is steady temperature of the nichrome element? The temperature coefficient of resistance of nichrome averaged over the temperature range involved , 1.70xx10^-4C^-1

The heating element of an electirc toaster is of nichrome. When a vary small current passes through it, at room temperrature 27^@C , its resistance is 75.3Omega . When toaster is connected to a 230V supply, the current settles after a few seconds to a steady value of 2.68A. What is the steady temperature of nichrome element? The temperature coefficient of resistance of nichrome over averged temperature range is 1.7xx10^(-4)^(@)C^(-1) .

The resistance of wire in a heater at roo temeperature is 65Oemga . When the heater is connected to a 220V supply the current settles after a few seconds to 2.8A. What is the steady temperature of the wire. (Temperature coefficient of resistance alpha=1.70xx10^(-4) ^(@).C^(-) )

At what temperature will the resistance of a copper wire become three times its value at 0^(@)C (Temperature coefficient of resistance for copper = 4 xx 10^(-3) per C)

The resistance of a heating is 99Omega at room temperature. What is the temperature of the element if the resistance is found to be 11 Omega (Temperature coefficient of the material of the resistor is 1.7xx10^(-4)^(2).C^(-1) )

SL ARORA-CURRENT ELECTRICITY-Problems For Self
  1. A heating element using nichrome connected to a 230 V supply draws an ...

    Text Solution

    |

  2. One billion electrons pass from a point P towards another point Q in 1...

    Text Solution

    |

  3. Calculate the number of free electrons passing through the filament of...

    Text Solution

    |

  4. In the electrolysis of silver chloride, a charge of 4xx10^(5) C is flo...

    Text Solution

    |

  5. In a hydrogen atom, the electron makes about 0.6xx10^(16) revolutions ...

    Text Solution

    |

  6. An electron gun emits 2.0xx10^(16) electrons per second. What is the a...

    Text Solution

    |

  7. An electric current of 2.0 mu A exists in a discharge tube. How much c...

    Text Solution

    |

  8. An electron moves in a circular orbit of radius 10 cm with a constant ...

    Text Solution

    |

  9. The current through a wire depends on time as I=I(0)+alpha t, where I(...

    Text Solution

    |

  10. A current of 4.8 A is flowing in a copper wire of cross-sectional area...

    Text Solution

    |

  11. A voltage of 30 V is applied across a colour coded carbon resistor wit...

    Text Solution

    |

  12. The sequence of bands marked on a carbon resistor is yellow , red oran...

    Text Solution

    |

  13. The resistance of a conductivity wire of length 1.1 m and of diameter ...

    Text Solution

    |

  14. A metal wire of specific resistance 64xx10^(-6) Omega m and length 1.9...

    Text Solution

    |

  15. A negligbly small current is passed through a wire of length 15 cm and...

    Text Solution

    |

  16. Calculate the resistance of a 2 m long nichrome wire of radius 0.321 m...

    Text Solution

    |

  17. Find the resistance of a hollow cylindrical conductor of length 1.0m a...

    Text Solution

    |

  18. Calculate the electric field in a copper wire of cross-sectional area ...

    Text Solution

    |

  19. A given copper wire of resistance R is stretched to reduce its diamete...

    Text Solution

    |

  20. What will be the change in resistance of a constantan wire when its ra...

    Text Solution

    |

  21. A wire of resistance 10 Omega is drawn out so that its length is thric...

    Text Solution

    |