Home
Class 10
PHYSICS
What is the maximum resistance which can...

What is the maximum resistance which can be made using five resistors each of `(1//5) Omega` ?

A

`1//5 Omega`

B

`10 Omega`

C

`5 Omega`

D

`1 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D

The maximum resistance is obtained when resistors are connected in series combination. Thus equivalent resistance
`R_(s) = n xx R = 5 xx (1)/(5) = 1 Omega, R_(s)` = equivalent resistance for parallel combination.
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    NCERT EXEMPLAR ENGLISH|Exercise Short Answer Type Questions|17 Videos
  • LIGHT : REFLECTION AND REFRACTION

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|9 Videos

Similar Questions

Explore conceptually related problems

What is the minimum resistance which can be made using five resistors each of (1//5) Omega ?

An electrical meter of internal resistance 20Omega gives a full scale deflection when one milliampere current flows through it. The maximum current, that can be measured by using three resistors of resistance 12Omega each, in milliamperes is :

(a) Given n resistors each of resistance R . How will you combine them to get the (i) maximum (ii) minimum effective resistance ? What is the ratio of the maximum to minimum resistance ? (b) Given the resistances of 1 Omega, 2 Omega, 3 Omega , how will you combine them to get an equivalent resistance of (i) (11//3)Omega (ii) (11//5)Omega (iii) 6 Omega (iv) (6//11) Omega ? (c) Determine the equivalent resistance of networks shown in Figure.

What is the resistance between P and Q in the following circuit? Each resistance is of 1 Omega and the wire between eb and bd have resistance 0.5Omega each.

What is the smallest that can be obtained by ten (1)/(10)Omega resistance.

In the circuit shown in the figure , the resistance marked R can be varied by using a Rheostat. The power across the 5 Omega resistor will be maximum if the Rhoestat has resistance equal to

If a person has five resistors each of value 1/5 ohm , then the maximum resistance he can obtain by connecting them is (A) 1 ohm (B) 5 ohm (C) 10 ohm (D) 25 ohm

12 cells, each of emf 1.5 V and internal resistance of 0.5Omega , are arranged in m rows each containing n cells connected in series, as shown. Calculate the values of n and m for which this combination would send maximum current through an external resistance of 1.5 Omega .

A cell of e.m.f. 1.8 V and internal resistance 2 Omega is connected in series with an ammeter of resistance 0.7 Omega and a resistor of 4.5 Omega as shown in Fig. What would be the reading of the ammeter ?

A storage battery of emf 8.0 V and internal resistance 0.5 Omega is being charged by a 120V dc supply using a series resistor of 15.5Omega . what in the terminal voltage of the battery during charging ? What is the purpose of having a series resistor in the charging circuit?

NCERT EXEMPLAR ENGLISH-ELECTRICITY-Short Answer Type Questions
  1. What is the maximum resistance which can be made using five resistors ...

    Text Solution

    |

  2. A child has drawn the electric circuit to study Ohm's law as shown in ...

    Text Solution

    |

  3. Three 2 Omega resistors, A, B and C are connected as shown in figure. ...

    Text Solution

    |

  4. Should the resistance of an ammeter be low or high ? Give reason.

    Text Solution

    |

  5. Draw a circuit diagram of an electric circuit containing a cell, a key...

    Text Solution

    |

  6. How does use of a fuse-wire protect electrical appliances ?

    Text Solution

    |

  7. What is electrical resistivity ? In a series electrical circuit compri...

    Text Solution

    |

  8. What is the commercial unit of electrical energy ? Represent it in ter...

    Text Solution

    |

  9. (a) A current of 1 A flows in a series curcuit containing an electric ...

    Text Solution

    |

  10. Why is parallel arrangement used in domestic wiring ?

    Text Solution

    |

  11. B1,B2 and B3 are three identical bulbs connected as shown in (fig. 3.4...

    Text Solution

    |

  12. Three incandecent bulbs of 100 W each are connected in series in an el...

    Text Solution

    |

  13. State Ohm's law ? How can it be verified experimentally ? Does it hold...

    Text Solution

    |

  14. What is electrical resistivity ? How does it depend om temperature. Gi...

    Text Solution

    |

  15. How will you infer with the help of an experiment that the same curren...

    Text Solution

    |

  16. How will you conclude that the same potential difference (voltage) exi...

    Text Solution

    |

  17. What is Joule's heating effect ? How can it be demonstrated experiment...

    Text Solution

    |

  18. Find out the folowing in the electric circuit given in (Fig. 3.48). ...

    Text Solution

    |