Home
Class 12
PHYSICS
A 5 Omega resistor is connected in serie...

A `5 Omega` resistor is connected in series with a parallel combination of n resistors of `6 Omega` each. The equivalent resistance is `7 Omega`. Find n.

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    SL ARORA|Exercise Problems From Competitive|18 Videos

  • CHEMICAL EFFECT OF CURRENT

    SL ARORA|Exercise TYPE-B|5 Videos

  • ELECTRIC POTENTIAL AND ELECTRIC FLUX

    SL ARORA|Exercise Problems for self practive|61 Videos

Similar Questions

Explore conceptually related problems

A 5Omega resistor is connected in series with a parallel combination of n resistors of 6Omega each. The equivalent resistance is 7Omega . Find n

A resistor of 5 Omega is connected in series with a parallel combination of a number of resistors each of 5 Omega . If the total resistance of the combination is 6 Omega , how many resistor are in parallel?

A cell of emf 2V and internal resistance 4 Omega is connected across a parallel combination of two resistors of resistance 10 Omega and 20 Omega . Find the current through each resistor using Kirchhoff's laws.

The series combination of two batteries, both of the same emf 10 V, but different internal resistance of 10 Omega and 5 Omega is connected to the parallel combination of two resistors 30 Omega and R Omega . The voltage difference across the battery of internal resistance 10 Omega is zero, the value of R (in Omega ) is : _________.

The series combination of two batteries both of the same emf 10 V, but different internal resistance of 20 Omega and 5Omega is connected to the parallel combination of two resistors 30Omega and R Omega . The voltage difference across the battery of internal resistance 20 Omega is zero, the value of R(in Omega ) is __________.

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?

A 3Omega resistor and a 6Omega resistor are connected in parallel and the combination is connected in series to a battery of 5 V and a 3Omega resistor. The potential difference across the 6Omega resistor

The equivalent resistance of two resistors connected in series 6Omega and their parallel equivalent resistance is 4/3Omega . What are the value of resistance?

Three identical cells of emf 2 V and internal resistances 0.20 Omega are connected in series. The combination is further connected to an external resistor of 6 Omega . Calculate the current through 6 Omega resistor.

SL ARORA-CURRENT ELECTRICITY-Problems For Self
  1. How can the resistances of 2Omega, 3 Omega " and " 6 Omega be connecte...

    Text Solution

    |

  2. Given three resistances of 30 Omega each. How can they be connected to...

    Text Solution

    |

  3. A 5 Omega resistor is connected in series with a parallel combination ...

    Text Solution

    |

  4. A uniform wire which connected in parallel with the 2 m long wire, wil...

    Text Solution

    |

  5. The resistance of two conductors in series is 18 Omega and the resista...

    Text Solution

    |

  6. A wire whose resistance is 90 ohm is cut into 3 pieces of equal length...

    Text Solution

    |

  7. When a current of 0.5 A is passed through two resistances in series, t...

    Text Solution

    |

  8. Two wires a and b, each of length 40 m and area of cross-section 10^(-...

    Text Solution

    |

  9. Calculate the equivalent resistance between points A and B in each of ...

    Text Solution

    |

  10. Calculate the resistance between points A and B for the following netw...

    Text Solution

    |

  11. Find the equivalent resistance of the networks shown in Fig. 4.51 betw...

    Text Solution

    |

  12. Find the potential difference between the points A and B for the netwo...

    Text Solution

    |

  13. In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when...

    Text Solution

    |

  14. Find the potential difference between points A and B (V(B)-V(A)) in th...

    Text Solution

    |

  15. Determine the voltage drop across the resistance R(1) in the circuit g...

    Text Solution

    |

  16. Find the equivent resistance between points A and B

    Text Solution

    |

  17. Letter A as shown in Fig. 4.57 has resistance on each side of arm. Cal...

    Text Solution

    |

  18. Find the resistance between the points (i) A and B and (ii) A and C of...

    Text Solution

    |

  19. A combination of four resistances is shown in Fig. 4.59. Calculate the...

    Text Solution

    |

  20. Find the equivalent resistance of the circuit shown in Fig.4.60 betwee...

    Text Solution

    |