Home
Class 9
PHYSICS
If a P.D. of 12 V is applied across a 3 ...

If a P.D. of 12 V is applied across a `3 omega` resistor then the current passing through it is

A

36 A

B

4A

C

0.25 A

D

15 A

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    CHETANA PUBLICATION|Exercise EXERCISE|44 Videos
  • LAWS OF MOTION

    CHETANA PUBLICATION|Exercise EXAMPLE|119 Videos

Similar Questions

Explore conceptually related problems

A potential difference of 25 V is applied across a conductor of resistance 100 Omega . Find the current through the conductor.

A potential difference of 100 v is applied across a wire for two minutes. If the current through the wire is 0.1 A , find the heat produced in joule.

Choose the correct alternative and write it along its allotted alphabet: When a potential difference of 24 V is applied across a conductor, the current through it is 0.24 A. The resistance of the conductor is……..

Three resistors having resistances of 3 Omega , 4 Omega and 6 Omega are connected in parallel and a potential difference of 12 V is applied across them. Obtain the current flowing through the circuit and through individual resistors. What is the effective resistance in the circuit?

Three resistors having resistances of 5 Omega , 10 Omega and 30 Omega are connected in parallel and a potential difference of 12 V is applied across them. Obtain the current flowing through the circuit ang through individual resistors. What is the effective resistance in the circuit?

The resistance of a device is 100 Omega . Find the current through it when a potential difference of 20 V is applied across it. To pass the same current through a device having resistance 200 Omega , how much potential difference should be applied across it?

The resistance of a conductor is 10 ohm. Find the current through it when a potential difference of 2 V is applied across it. To pass the same current through a conductor of resistance 40 Omega , how much potential difference should be applied across it?

Solve: Two resistors having resistance of 16 and 14 are connected in series, if a potential difference of 18 V is applied across them, calculate the current flowing through the circuit and the potential difference across each individual resistor

A potential difference of 100 v is applied across a wire for 6 minutes and 58 seconds . If the current through the wire is 0.1 A . Find the heat produced in calorie.

When the voltage applied across a bulb is 220 v the current passing through the bulb is 0.1 A . Find the power of the bulb.

CHETANA PUBLICATION-CURRENT ELECTRICITY-EXERCISE
  1. The voltage difference in India between the live and neutral wiresis a...

    Text Solution

    |

  2. Resistivity is the specific property of a………. .

    Text Solution

    |

  3. If a P.D. of 12 V is applied across a 3 omega resistor then the curren...

    Text Solution

    |

  4. In order to measure the electric current flowing through a circuit, we...

    Text Solution

    |

  5. P and Q are two wires of same length and different cross sectional are...

    Text Solution

    |

  6. Following is true for identical bulbs connected in parallel.

    Text Solution

    |

  7. The……..wire is either yellow or green in colour.

    Text Solution

    |

  8. A current flows through a circuit due to the differnce in ………….between...

    Text Solution

    |

  9. ……is the amount of charge flowing throught a particular cross section...

    Text Solution

    |

  10. The flow of…...constitutes the eletric current in a wire

    Text Solution

    |

  11. The conventional direction of flow of current is from……..terminal to …...

    Text Solution

    |

  12. Resistances are connected in …..so as to pass the same current throu...

    Text Solution

    |

  13. To decrease the effective resistance in a circuit, the resistances are...

    Text Solution

    |

  14. 1 muV =….V

    Text Solution

    |

  15. Good conductors contain a large number of …………………

    Text Solution

    |

  16. Electrons flow ………terminal to ………terminal in a conductor when potentia...

    Text Solution

    |

  17. Sneha is getting an electrical shock what will you do the save her lif...

    Text Solution

    |

  18. Derive the expression for resistances connected in series.

    Text Solution

    |

  19. Derive the expression for the resistances connected inparallel.

    Text Solution

    |

  20. Answer the following question: Find the expression for the resistivity...

    Text Solution

    |