Home
Class 10
PHYSICS
Judge the equivalent resistance when the...

Judge the equivalent resistance when the following are connected in parallel.
(a) `1 Omega and 10^6 Omega`
(b) `1 Omega and 10^8 Omega and 10^6 Omega`.

Text Solution

Verified by Experts

(a) When `1 Omega "and " 10^(6) Omega` are connected in parallel :
Let R be the equivalent resistance.

Therefore, equivalent resistance `~~ 1 Omega`
(b) When `1 Omega "and " 106 Omega ` are connected in parallel:
Let R be the equivalent resistance.

Therefore, equivalent resistance `=0.999 Omega`
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    NCERT|Exercise Exercise|41 Videos
  • LIGHT - REFLECTION AND REFRACTION

    NCERT|Exercise Exercise|31 Videos

Similar Questions

Explore conceptually related problems

Find the equivalent resistance when the following are connected in parallel: 1 Omega and 100 Omega

Find the equivalent resistance when the following are connected in parallel: 1 Omega and 100 Omega and 1000 Omega

When resistors 1 and 2 are connected in series, the equivalent resistance is 20.0 Omega. When they are connected in parallel, the equivalent resistance is 3.75 Omega. What are (a) the smaller resistance and (b) the larger resistance of these two resistors?

The Total resistance when connected in series in 9 Omega and when connected in parallel is 2 Omega The value of two resistance are

NCERT-ELECTRICITY-Exercise
  1. Draw a schematic diagram of a circuit consisting of a battery of three...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. An electric lamp of 100 Omega, a toaster of resistance 50 Omega and a ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. What is : (a) the highest (b) the lowest total resistances that can b...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  13. A piece of wire of resistance R is cut into five equal parts. These pa...

    Text Solution

    |

  14. Which of the following terms does not represent electrical power in a ...

    Text Solution

    |

  15. An electric bulb is rated 220 V and 100 W. When it is operated on 110 ...

    Text Solution

    |

  16. Two conducting wires of the same material and of equal length and equa...

    Text Solution

    |

  17. How is voltmeter connected in the circuit to measure potential differe...

    Text Solution

    |

  18. A copper wire has a diameter of 0.5 mm and a resistivity of 1.6 xx 10^...

    Text Solution

    |

  19. The value of current, I, flowing in a given resistor for the correspon...

    Text Solution

    |

  20. When a 12 V battery is connected across an unknown resistor, there is ...

    Text Solution

    |