Home
Class 12
PHYSICS
An electric current of 4.0A flows throug...

An electric current of 4.0A flows through a `12Omega` resistor. What is the rate at which heat energy is produced in the resistor?

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 current of 200mA flows through a 4k Omega resistor. What is the p.d. across the resistor?

Current flowing through 4 Omega resistor is :

Current through the 5Omega resistor is

A current of 5 ampere flows in a 10 -ohm resistor. Calculate the rate of heat energy produced in the resistor.

A current of 3 A flows through the 2 Omega resistor as shown in the circuit. The power dissipated in the 5 Omega resistor is

A current of 0.1 A flows through a 25 Omega resistor represented by the circuit diagram. The current in the 80 Omega resistor is

SL ARORA-HEATING EFFECT OF CURRENT-All Questions
  1. An electric current of 4.0A flows through a 12Omega resistor. What is ...

    Text Solution

    |

  2. How many electrons flow through the filament of a 120V and 60W electri...

    Text Solution

    |

  3. Calculate the current flowing through a heater rated at 2 kW when con...

    Text Solution

    |

  4. A current of 5.0A flows through an electric press of resistance 44Omeg...

    Text Solution

    |

  5. A heating element is marked 210 V, 630 W. What is the current drawn by...

    Text Solution

    |

  6. A 10 V storage battery of negilgible internal resistance is connected ...

    Text Solution

    |

  7. An electric motor operates on a 50V supply and draws a current of 12A....

    Text Solution

    |

  8. An electric motor operating on a 50 V dc supply draws a current of 12...

    Text Solution

    |

  9. Which of the two has greater resistance : a 1kW heater or a 100W tungs...

    Text Solution

    |

  10. An electric power station ( 100 MW) transmits power to a distant load ...

    Text Solution

    |

  11. A generator is supplying power to a factory by cables of resistance ...

    Text Solution

    |

  12. One kilowatt electric heater is to be used with 220V d.c. supply. (i) ...

    Text Solution

    |

  13. Two ribbons are gien with the following particulars: For a fixed ...

    Text Solution

    |

  14. A 100W-220V bulb is connected to 110 V source. Calculate the power con...

    Text Solution

    |

  15. A heater coil is rated 100W,200V. It is cut into two identical parts. ...

    Text Solution

    |

  16. An electric bulb is marked 100W, 230V. If the supply voltage drops to ...

    Text Solution

    |

  17. By what percentage will the illimination of the lamp decrease if the c...

    Text Solution

    |

  18. An electric bulb rated for 500 W at 100 V is used in a circuit having ...

    Text Solution

    |

  19. The maximum power rating of a 20 Omega resistor is 2.0 kW. [That is, t...

    Text Solution

    |

  20. A 25W and 100W bulbs are joined in series and connected to the mains. ...

    Text Solution

    |