Home
Class 12
PHYSICS
In the circuit shown, the galvanometer s...

In the circuit shown, the galvanometer shows zero current. The value of resistance R is :

A

`1 Omega`

B

`2 Omega`

C

`4 Omega`

D

`9 Omega`

Text Solution

Verified by Experts

The correct Answer is:
A

If pot drop between A and B is also 2V, then no current will pass through the galvanometer.
Pot drop across `R = ((12)/(R+5))R =2`
`12 R =2R+10 R =1 Omega`
Promotional Banner

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.36|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.37|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.34|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise High Level Problems (HIP)|19 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE ENGLISH|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

In the circuit, the galvanometer G shows zero deflection. If the batteries A and b have negligible internal resistance, the value of the resistor R will be -

In the circuit, shown the galvanometer G of resistance 60Omega is shifted by a resistance r=0.02 Omega . The current through R is nearly 1A. The value of resistance R (in ohm) is nearly.

In the circuit shown, the current I will be zero when R is

In the circuit shown, readint of galvanometer is zero. Select the correct alternative(s)

In the circuit shown in the figure . The value of current I_4 is

In the circuit shown, the value of each resistance is r , then equivalent resistance of circuit between points A and B will be

In the circuit shown, both cells are ideal and of fixed emf, the resistance of resistance R_(1) has fixed resistance and the resistance of resistor R_(2) can be varied (but the value of R_(2) is not zero). Then:

The current in the resistance R will be zero if

In the circuits shown in the figures, the galvanometers show no deflection. Find the ratio of R_(1) and R_(2) .

In the circuit shown, the current in 3Omega resistance is

RESONANCE ENGLISH-DAILY PRACTICE PROBLEM-DPP No.35
  1. The figure shows two large, closely parallel, nonconducting sheets wit...

    Text Solution

    |

  2. The displacement time graphs of two bodies A and B are shown in figure...

    Text Solution

    |

  3. For the given situation shown in figure , choose the correct option (g...

    Text Solution

    |

  4. Using mass (M) , length (L) , time (T) , and electric current (A) as f...

    Text Solution

    |

  5. In a region of uniform electric field vec(E) = E(0) hat (i) a semi cyl...

    Text Solution

    |

  6. A soap film is created in a small wire frame as shown in the figure. T...

    Text Solution

    |

  7. In a binary star system one star has thrice the mass of other. The sta...

    Text Solution

    |

  8. A small object is placed at distance of 3.6 cm from a magnifier of fo...

    Text Solution

    |

  9. An ideal fluid flows through a pipe of circular cross-section made of ...

    Text Solution

    |

  10. The angle of contact at the interface of water-glass is 0^(@) , ethyl ...

    Text Solution

    |

  11. Which graph best represent the relationship between conductivity and r...

    Text Solution

    |

  12. Through an electrolyte an electrical current is due to drift of

    Text Solution

    |

  13. A electric current passes through non uniform cross-section wire made ...

    Text Solution

    |

  14. A body of mass m is lifted up from the surface of earth to a height th...

    Text Solution

    |

  15. Specific resistance of a wire depends on its

    Text Solution

    |

  16. In the circuit shown, the galvanometer shows zero current. The value o...

    Text Solution

    |

  17. An ammeter and a voltmeter are initially connected in series to a batt...

    Text Solution

    |

  18. A cone made of a materal of relative density (d = (27)/(64)) and heigh...

    Text Solution

    |

  19. A U-tube of uniform cross section is partially filled with a liquid I....

    Text Solution

    |

  20. Imagine a short diploe at the center of a spherical surface. If the ma...

    Text Solution

    |