Home
Class 12
PHYSICS
Figure shows three resistor configuratio...

Figure shows three resistor configurations R1,R2 and R3 connected to 3 V battery .

If the powers dissipated by the configuration R1,R2 and R3 are P1,P2 and P3, respectively, then

A

`P1gtP2gtP 3`

B

` P 1gtP 3gtP2 `

C

`P 2gtP1gtP 3`

D

`P3gtP 2gtP1`

Text Solution

Verified by Experts

The correct Answer is:
3

The given three circuits are equivalent to the following simpler circuits.

`therefore P1=(3^(2))/(1)=9W rArr P2=(3^(2))/((1//2))=18W`
`P3=(3^(2))/(2)=4.5W` Hence `P2gtP1gtP3`
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos
  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

Figure shows three resistor configurations R1,R2 and R3 connected to 3V vattery If the prower dissipated by the configuration R1,R2 and R3 is P1 ,m P2 and P3 repecitively then Figure

Figure shows three resistor configurations R_(1),R_(2) and R_(3) connected to 3V battery. If the power dissipated by the configurations R_(1),R_(2) and R_(3) is P_(1),P_(2) and P_(3) respectively, then

A resistor of resistance R is connected to an ideal battery. If the value of R is decreased,the power dissipated in the resistor will

Three identical resistors R_(1) = R_(2) = R_(3) are connected as shown to a battery of constant e.m.f . The power dissipated is

Three resistors having values R_1,R_2 and R_3 are connected in series to a battery.Suppose R_1 carries a current of 2.0 A, R_2 has resistance of 3.0 ohms, and R_3 dissipates. 6.0 watts of power. Then the voltage across R_3 is

ALLEN-CURRENT ELECTRICITY-All Questions
  1. A galvanometer of resistance G is shunted by a resistance S ohm. To...

    Text Solution

    |

  2. A thermocouple of negligible resistance produces an emf fo 40 mu V//^(...

    Text Solution

    |

  3. Figure shows three resistor configurations R1,R2 and R3 connected to 3...

    Text Solution

    |

  4. A ring is made of a wire having a resistance R(0) = 12 Omega. Find the...

    Text Solution

    |

  5. If voltage across a bulb rated 22 volt 100 watt drops by 2.5% of its r...

    Text Solution

    |

  6. In the circuit shown the cells A and B have negligible resistance. For...

    Text Solution

    |

  7. A milli voltmeter of 25 milli volt range is to be converted into an am...

    Text Solution

    |

  8. The power dissipated in the circuit shown in the is 30 watts. The valu...

    Text Solution

    |

  9. A cell having an emf E and internal resistance r is connected across a...

    Text Solution

    |

  10. A voltmeter reads the potential difference across the terminals of an ...

    Text Solution

    |

  11. Six resistances each of v ale r=6Omega are connected between points A,...

    Text Solution

    |

  12. When 115V is applied across a wire that is 10m long and has a 0.30mm r...

    Text Solution

    |

  13. In the potentiometer circuit shown in the figure the balance length AJ...

    Text Solution

    |

  14. Figure shows a circuit with three ideal batteries in it. The circuit e...

    Text Solution

    |

  15. In the Bohr's model of hy drogen atom, the electron moves around the n...

    Text Solution

    |

  16. Three copper wires of length and cross-sectional areas are (L,A)(2L,(A...

    Text Solution

    |

  17. When a piece of aliminium wire of finite length is drawn through a ser...

    Text Solution

    |

  18. Every atom makes one free electron in copper. If 1.1 ampere current is...

    Text Solution

    |

  19. A metal wire of resistance R is cut into three equal pieces that are t...

    Text Solution

    |

  20. Two cells X and Y are connected to a resistance of 10Omega shown in th...

    Text Solution

    |