Home
Class 12
PHYSICS
A coil of resistance 100Omega is connect...

A coil of resistance `100Omega` is connected across a battery of emf 6.0V. Assume that. The heat developed in the coil is used to raise its temperature. If the thermal capacity of coil is 4.0 `JK^(-1)`. How long would to take it raise the temperature of the coil by `15^(@)C`?

Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC FORCES, CHARGES AND FIELDS

    SL ARORA|Exercise Problems For Self Practice|1 Videos

  • MAGNETIC EFFECTS OF CURRENT

    SL ARORA|Exercise TYPE C|4 Videos

Similar Questions

Explore conceptually related problems

A coil of resistance 100 Omega is connected across a battery of emf 6.0 V . Assume that the heat developed in the coul is used to raise its temperature. If the heat capacity of the coil is 4.0 J K^(-1) , how long will it take to raise the temperature of the coil by 15^@ C ?

A coil of resistance 40 Omega is connected across a 4.0 V battery. 0.10 s after the battery is connected, the current in the coil is 63 mA. Find the inductance of the coil.

A coil of inductance 8.4 mH and resistance 6 Omega is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time.

A coil of inductance 8.4 mH and resistance 6 (Omega) is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time

A coil o finductanc e 8.4mH and resistance 6Omega is connected to a 12V battery. The current in the coil is 1.0A in the time (approx .)

A coil of inductance 1.0 H and resistance 100 ohm is connected to a battery of emf 12 V. Find the energy stored in the magnetic field of the coil 10 ms after the circuit is switched on.

SL ARORA-HEATING EFFECT OF CURRENT-All Questions
  1. An electric current of 2.0A passes through a wire of resistance 25Omeg...

    Text Solution

    |

  2. An ammeter reads a current of 30A when it is connected across the term...

    Text Solution

    |

  3. A coil of resistance 100Omega is connected across a battery of emf 6.0...

    Text Solution

    |

  4. A 100W and a 500W bulbs are joined in series and connected to the main...

    Text Solution

    |

  5. Two bulbs are market 220V, 100W and 220V,50W respectively. They are co...

    Text Solution

    |

  6. Two electric lamps are rated as 220V. 40 W and 220V,60W. Find the heat...

    Text Solution

    |

  7. In a house having 220V line, the following appliances are working : (i...

    Text Solution

    |

  8. How many 60W bulbs may be safely used on 220V line using a 5A fuse?

    Text Solution

    |

  9. An electric heater consists of 10m long nichrome wire of 2.5xx10^(-6)m...

    Text Solution

    |

  10. The resistances of 20Omega are connected to a source of emf. Calculate...

    Text Solution

    |

  11. An electric motor operating on a 30V supply draws a current of 10A and...

    Text Solution

    |

  12. A line having a total resistance of 0.2Omega delivers 10kW at 220V to ...

    Text Solution

    |

  13. A motor operating on 120V V draws a current of 2 A. if the heat is dev...

    Text Solution

    |

  14. A small electric motor is rated 1/8H.P. and is running at 230V supply....

    Text Solution

    |

  15. A 500W electric heater is designed to work with a 200 V line. If the v...

    Text Solution

    |

  16. Three equal resistors connected in series across a source of emf toget...

    Text Solution

    |

  17. A room is lighted by 200W, 124V incandescent lamps fed by a genrator w...

    Text Solution

    |

  18. An electric heater consists of 20m length of manganin wire of 0.23 m^(...

    Text Solution

    |

  19. Two wires A and B of same material and mass, have their lengths in the...

    Text Solution

    |

  20. Find the cost of electricity for running an electric motor of 1H.P. fo...

    Text Solution

    |