Home
Class 12
PHYSICS
Suppose you have three resistor of (20 O...

Suppose you have three resistor of `(20 Omega),(50Omega)and (100 Omega)`.what minimum and maximum resistances can you obtain from these resistors?

Text Solution

Verified by Experts

Max. R = `(20+50+100) Omega`
= `170 Omega `
` min R =(1/ (5/100)+(2/200)+(1/100))`
` = (1/ (5+2+1/100)) `
` = 100/8 = 12.5 Omega ` .
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Objective 2|9 Videos

  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Exercises|11 Videos

  • ELECTRIC CURRENT THROUGH GASES

    HC VERMA|Exercise Exercises|23 Videos

Similar Questions

Explore conceptually related problems

How can three resistor of resistances 2 Omega, 3 Omega and 6 Omega be connected to give a total resistance of 4 Omega

How can three resistor of resistances 2 Omega, 3 Omega and 6 Omega be connected to give a total resistance of 1 Omega ?

Three resistors 1 Omega, 2 Omega and 4 Omega are combined in series. What Is the total resistance of the combination ?

Three resistor 2 Omega , 4 Omega and 6 Omega are combined In parallel. What is the total resistance of the combination ?

In a circuit, two resistors of resistances 5 Omega and 10 Omega are connected in series. Compare the current passing through the two resistors.

Three resistors are connected in parallel with a 30V battery. A current of 7.5A flows through the circuit. If two out of the three resistors are of 10Omega and 12Omega , determine the resistance of the third resistor.

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

The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Omega what is the maximum current that can be drawn from the battery ?

Three resistors of resistances 2 Omega, 3 Omega and 5 Omega are connected in series with 10 V battery. The voltage across 2Omega resistor will be ………………… .

Find the minimum resistance that can be made using five resistors, each of 5 Omega .

HC VERMA-ELECTRIC CURRENT IN CONDUCTORS-Exercises
  1. The resistance of the rheostat shown in figure is 30(Omega). Neglectin...

    Text Solution

    |

  2. Three bulbs,each having a resistance of 180(Omega)are connected in par...

    Text Solution

    |

  3. Suppose you have three resistor of (20 Omega),(50Omega)and (100 Omega)...

    Text Solution

    |

  4. A bulb is made using two filaments.A switch selects whether the filame...

    Text Solution

    |

  5. if a current of 12mA exists in the 5k(Omega) resistor, find the curre...

    Text Solution

    |

  6. An ideal battery sends a current of 5A in a resistor.When another resi...

    Text Solution

    |

  7. Find the equivalent resistances of the network shown in figurebetween ...

    Text Solution

    |

  8. A wire of resistance 15.0(Omega)is bent to form a regular hexagon ABCD...

    Text Solution

    |

  9. Consider the circuit shown in figure.Find the current through the10(Om...

    Text Solution

    |

  10. Find the currents through the three resistors shown in Figure

    Text Solution

    |

  11. Shown a part of an electric circuit, The potentials at the points a,b,...

    Text Solution

    |

  12. Each of the resistors shown in figure has a resistances of 10(Omega)an...

    Text Solution

    |

  13. Find the potential difference V(a)-V(b)in the circutis shown in figure

    Text Solution

    |

  14. In the circuit shown in figure ,(epsilon)(1)=3V,(epsilon)(2)=2V,(epsil...

    Text Solution

    |

  15. Find the current through the 10(Omega)resistor shown in figure.

    Text Solution

    |

  16. Find the current in the resistor shown in figure.

    Text Solution

    |

  17. What should be the value of R in figure fo which the current in it is ...

    Text Solution

    |

  18. Find the equivalent resistance of the circuit shown in figure between ...

    Text Solution

    |

  19. Find the current measured by the ammeter in the circuit shown in figur...

    Text Solution

    |

  20. Consider the circuit shown in figure.Find (a) the current in the circu...

    Text Solution

    |