Home
Class 10
PHYSICS
Let the resistance of an electrical comp...

Let the resistance of an electrical component remain constant while the potential difference across the two ends of the component decreases to half its former value. What change will occur in the current through it ?

Text Solution

Verified by Experts

When the potential difference across the two ends of the electrical component becomes becomes half its former value, the current through it also becomes half. Since `I = V//R`, when pd becomes `I//2` as the resistance (R ) of the component remains constant.
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    PRADEEP|Exercise NCERT Exercise|18 Videos
  • ELECTRICITY

    PRADEEP|Exercise (Exemplar)Short Answer|10 Videos
  • ELECTRICITY

    PRADEEP|Exercise (Mock Test)Sec - B|6 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    PRADEEP|Exercise Mock Test|21 Videos

Similar Questions

Explore conceptually related problems

Keeping the resistance constant, the potential difference applied across the ends of a components is halved. By how much does the current change?

Write the relation between electric power of a devices with potential difference across its two ends and its resistance .

Name the law which relates the current in a conductor to the potential difference across its ends.

If the potential difference across the ends of a conductor is doubled, the current flowing through it gets

Find the resistance of a conductor if the electric current flowing through it is 0.35 A when the potential difference across it is 1.4 V.

A potential difference of 20 volts is applied across the ends of a resistance of 5 ohms. What current will flow in the resistance?

PRADEEP-ELECTRICITY-NCERT Question
  1. Name a device that helps to maintain a potiontial difference across a ...

    Text Solution

    |

  2. What is meant by saying that the potential difference between two poin...

    Text Solution

    |

  3. How much energy is given to each coulomb of charge passing through a 6...

    Text Solution

    |

  4. On what factors does the resistance of a conductor depend ?

    Text Solution

    |

  5. Will current flow more easily through a thick wire or a thin wire of t...

    Text Solution

    |

  6. Let the resistance of an electrical component remain constant while th...

    Text Solution

    |

  7. Why are coils of electric toasters and electric irons made of an alloy...

    Text Solution

    |

  8. Use the data in Table 3.1 to answer the following : (a) Which among ...

    Text Solution

    |

  9. Draw a schematic diagram of a circuit consisting of a battery of three...

    Text Solution

    |

  10. Redraw the circuit of Q.12, putting in an ammeter to measure the curre...

    Text Solution

    |

  11. Judge the equivalent resistance when the following are connected in pa...

    Text Solution

    |

  12. An electric lamb of 100 Omega, a toaster of resistance 50 Omega and a ...

    Text Solution

    |

  13. What are the advantages of connecting electrical devices in parallel w...

    Text Solution

    |

  14. How can three resistors of resistances 2 Omega,3 Omega, and 6 Omega be...

    Text Solution

    |

  15. What is : (a) the highest (b) the lowest total resistances that ca...

    Text Solution

    |

  16. Why does the cord of an electric heater not glow while the heating ele...

    Text Solution

    |

  17. Compute the heat generated while transferring 96000 coulombs of charge...

    Text Solution

    |

  18. An electric iron of resistance 20 Omega takes a current of 5 A. Calcul...

    Text Solution

    |

  19. What determines the rate at which energy is delivered by a current ?

    Text Solution

    |

  20. An electric motor takes 5 A from a 220 V line. Determine the power and...

    Text Solution

    |