Home
Class 12
PHYSICS
If resistance of voltmeter is 10000 Omeg...

If resistance of voltmeter is `10000 Omega` and resistance of ammeter is `2Omega` then find R when voltmeter reads 12 V and ammeter reads 0.1 A

A

118 `Omega`

B

120 `Omega`

C

124 `Omega`

D

114 `Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |12 Videos
  • MOVING CHARGES AND MAGNETISM

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |12 Videos
  • MOTION IN A STRAIGHT LINE

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|5 Videos
  • OSCILLATIONS

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |5 Videos

Similar Questions

Explore conceptually related problems

In the circuit shown the resistance of voltmeter is 10000 ohm and that of ammeter is 20 ohm . The ammeter reading is 0.10 amp and voltmeter reading is 12 volts. Then R is equal to

The voltmeter V in the figure. Reads 117V and the ammeter A reads 0*13A . The resistance of the voltmeter is 9000Omega and the resistance of ammeter is 0*015Omega . Compute (i) the resistance R, (ii) the power input to R.

An ammeter A, a voltmeter V and a resistance R are connected as shown in the figure. If the voltmeter reading is 1.6V and the ammeter reading is 0.4 A, then R is

A 9000 Omega voltmeter is connected across a resistor R and an ammeter of ressistance 0.015 Omega in series. The voltmeter reads 117V and a ammeter reads 0.13A. Calculate the value of R and power input to R.

Resistance value of an unknown resistor is calculated using the formula R=V/I where V and I be the readings of the voltmeter and the ammeter respectively. Consider the circuits below. The internal resistances of the voltmeter and the ammeter ( R_v and R_G respectively ) are finite and non zero. Let R_v and R_G be the calculated values in the two cases A and B respectively. If the resistance of voltmeter is R_v=1kOmega and that of ammeter is R_G=1Omega the magnitude of the percentage error in the measurement of R (the value of R is nearly 10Omega ) is:

A student connects a voltmeters, ammeter and resistance according to the circuit given. If the voltmeter reading is 20V and ammeter reading is 4A, then the resistance will be

A cardidate connects a moving coil voltmeter V , a moving coil ammeter A and a resistance R as shown in figure. If the voltmeter reads 24 V and the ammeter reads 4 A , R is

A Candidate connects a moving coil ammeter A and a moving coil voltmeter V and a resistance R as shown figure If the voltmeter reads 20 V and the ammeter reads 4 A , then R is

PHYSICS WALLAH-MOVING CHARGES AND MAGNETISM -LEVEL - 2
  1. The maximum velocity to which a proton can be accelerated in a cycl...

    Text Solution

    |

  2. A cyclotron can accelerate

    Text Solution

    |

  3. Two thin long parallel wires separated by a distance b are carrying a ...

    Text Solution

    |

  4. In the given figure, the loop is fixed but straight wire can move. The...

    Text Solution

    |

  5. The deflection in a moving coil galvanometer is

    Text Solution

    |

  6. A galvanometer has 30 divisions and a sensitivity 16 mu A //"div". It ...

    Text Solution

    |

  7. If resistance of voltmeter is 10000 Omega and resistance of ammeter is...

    Text Solution

    |

  8. A voltmeter of range 2 V and resistance 300 Omega cannot be converted ...

    Text Solution

    |

  9. A long solenoid carrying a current produces a magnetic field B alon...

    Text Solution

    |

  10. An electric current passes through a long straight copper wire. At a d...

    Text Solution

    |

  11. A square wire of each side l carries a current I. What is the magnetic...

    Text Solution

    |

  12. A conductor carrying current I is of the type as shown in figure. Find...

    Text Solution

    |

  13. A and B are two infinitely long straight parallel conductors. C is ano...

    Text Solution

    |

  14. A conducting rod of length l and mass m is moving down a smooth inclin...

    Text Solution

    |

  15. The magnetic force per unit length on a wire carrying a current of 10 ...

    Text Solution

    |

  16. Current i is carried in a wire of length L. If the wire is turned into...

    Text Solution

    |

  17. An alpha-particle is accelerated by a potential difference of 10^4 V. ...

    Text Solution

    |

  18. In the loop shown, the magnetic induction at the point 'o' is

    Text Solution

    |

  19. If an electron is revolving in a circular orbit of radius 0.5A^(@) wit...

    Text Solution

    |

  20. Two conductors having current in opposite direction………………..

    Text Solution

    |