Home
Class 12
PHYSICS
Two square metal plates A and B are of t...

Two square metal plates A and B are of the same thickness and material. The side of B is twice that of A. these are conncetedasshown in series. If the resistances of A and B are denoted by `R_A and R_B` then `(R_A //R_B)` is :

A

`1//2`

B

`2 //1`

C

`1//1`

D

`4//1`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MOVING CHANGES & MEGNETISM)|95 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (ELECTRIC POTENTIAL & CAPACITANCE )|143 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

Similar Questions

Explore conceptually related problems

Two wires A and B made of same material and having their lengths in the ratio 6:1 are connected in series The potential difference across the wire 3V and 2V respectively. If r_A and r_B are the radii of A and B respectively, then r_B/r_A is

Two identical capacitors A and B are charged to the same potential and then made to discharge through resistances R_(A) and R_(B) respectively, with R_(A) gt R_(B) .

Two planets A and B have the same averge density . Their radii R_A and R_B are such that R_A : R_B = 3 : 1 . If g_A and g_B are the acceleration due to gravity at the surfaces of the planets, the g_A : g_B equals

The resistance of metal sheet 1 between A and B is R_1 and the resistance of sheet 2 between A' and B' is R_(2) . The value of the ratio (R_1)/(R_2) is

Two tubes A and B are in series. The radius of A is R and that of B is 2R. If water flows through A with velocity v then the velocity of water through B is

The equivalent resistance between the points A and B is ( R is the resistance of each side of smaller square)

Two artificial satellites A and B are at a distance r_(A) and r_(B) above the earth's surface. If the radius of earth is R, then the ratio of their speed will be :-

Three identical capacitors A, B and C are charged to the same potential and then made to discharge through three resistances R_A, R_B and R_C , where R_A gt R_B gt R_C . Their potential differences (V) are plotted against time t, giving the curves 1, 2 and 3. Find the correlations between A, B, C and 1, 2, 3.

Two planets A and B have the same average density . Their radii R_A and R_B are such that R_A: R_B = 3 : 1 . If g_A and g_B are the acceleration due to gravity at the surface of the planets , the g_A : g_B equals

Triangles A B C and DBC are on the same base B C with A, D on opposite side of line B C , such that a r(_|_ A B C)=a r( D B C)dot Show that B C bisects A Ddot

AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (CUTTENT ELECTRICITY )
  1. The resultant resistance of two resistance in series is 50 Omega and i...

    Text Solution

    |

  2. A uniform wire is cut into 10 segments of increasing length. Each segm...

    Text Solution

    |

  3. Two square metal plates A and B are of the same thickness and material...

    Text Solution

    |

  4. Three unequal resistors in parallel are equivalent to a resistance 1Om...

    Text Solution

    |

  5. When 16 wires which are identical are connected in series, the effecti...

    Text Solution

    |

  6. A uniform conductor of resistance R is cut into 20 equal pieces. Half ...

    Text Solution

    |

  7. A conductor of resistance 3Omega is stretched uniformly till its lengt...

    Text Solution

    |

  8. Four resistance 10 Omega,5Omega,7 Omega and 3 Omega are connected so ...

    Text Solution

    |

  9. If the galvanometer reading is zero, in the given circuit. Then the va...

    Text Solution

    |

  10. Th equivalent resistance between points A and B of an infinite network...

    Text Solution

    |

  11. The effective resistance between A and B is the given circuit is

    Text Solution

    |

  12. Equivalent resistance across A and B in the given circuit is

    Text Solution

    |

  13. Calculate the effective resistance between the points A and B in the c...

    Text Solution

    |

  14. The equivalent resistance across XY is

    Text Solution

    |

  15. An aluminium ( alpha(Al) = 4 xx 10^(-3) //""^(0) C) wire resistance R1...

    Text Solution

    |

  16. A carbon filament has resistance of 120Omega at 0^(@)C what must be t...

    Text Solution

    |

  17. The resistance of a metal wire is 10 Omega . A current of 30 mA is flo...

    Text Solution

    |

  18. The maximum voltage that can be applied to 5 KOmega and 8W resistor w...

    Text Solution

    |

  19. Three equal resistors connected in series across a source of emf toget...

    Text Solution

    |

  20. Same mass of copper is drawn into 2 wires of 1 mm thick and 3mm thick....

    Text Solution

    |