Home
Class 12
PHYSICS
When 3 mA and 5 mA currents are passed t...

When 3 mA and 5 mA currents are passed through two galvanometers P and Q, they give same deflection of 10 divisions. Hence

A

P is more sensitive than Q.

B

Q is more sensitive than P.

C

P and Q are both equally sensitive.

D

Sensitivity of Q is `5/3` times sensitivity of P.

Text Solution

Verified by Experts

The correct Answer is:
A
Because for same deflection, `S_(i)prop1/I`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    KUMAR PRAKASHAN|Exercise SECTION D (MCQs ASKED IN COMPETITIVE EXAMS)|34 Videos

  • MOVING CHARGES AND MAGNETISM

    KUMAR PRAKASHAN|Exercise SECTION C (LONG ANSWER TYPE QUESTIONS)|7 Videos

  • MAGNETISM AND MATTER

    KUMAR PRAKASHAN|Exercise SECTION D Multiple Choice Questions (MCQs) (MCQs asked in Competitive Exams) MCQs asked in Board Exam and GUJCET|7 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs ASKED IN COMPETITIVE EXAMS)|142 Videos

Similar Questions

Explore conceptually related problems

In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52 m of the potentiometer wire. If the cell is shunted by a resistance of 5Omega balance is obtained when the cell connected across 0.4m of the wire. Find the internal resistance of the cell.

In a potenliomcter experiment, it is found that no current passes through the galvanometer when the terminals of the cell are connected across 52 cm of the potentiometer wire. If the cells is shunted by a resistance of 5 Omega , a balance is found when the cells is connected across 40 cm of the wire. Find the internal resistance of the cell.

Equal currents are passing through two very long and straight parallel wires in the same direction. They will _______ .

It is observed in a potentiometer experiment that no current passes through the galvanometer, when the terminals of the potentiometer, wire. On shunting the cell by a 2Omega resistance, the balancing length is reduced to half. The internal resistance of the cell is:-

Which option is correct for the following statements A and B? Statement A: The current passing through each resistor is the same in a series combination of resistors. Statement B: The voltage between two ends of each resistor is the same in a parallel combination of resistors.

There are 21 marks (zero to 20) on the dial of a galvanometer, that is there are 20 divisions. On passing 10muA current through it, it shows a deflection of 1 division. Its resistance is 20Omega . (a) How can it be converted into an ammeter which can measure 1 A current ? (b) How can we change it into a voltmeter to measure a pd of 1 V ? Also find the effective resistance of both of the above mentioned meters.

When a galvanometer with a shunt is joined in an electrical circuit 2% of the total current passes through the galvanometer. Resistance of galvanometer is G. Find the value of shunt.

When 10 A current passes through 12 Omega resistance, maximum voltage across it is ……..

The four arma os a Wheatstone bridge have the following resistances: AB =100Omega, BC =10 Omega, CD=5Omega and DA=60Omega A galvanometer of 15Omega resistacne is connected across BD. Calculate the current through the galvanometer when a potential difference of 10 V is maintained across AC.

If an electric bulb gives light for 1hour while carrying 0.5A current, how much electric charge passes through it and how many electrons pass through it during this time? (e = 1.6 xx 10^(-19) C)

KUMAR PRAKASHAN-MOVING CHARGES AND MAGNETISM-SECTION D (MULTIPLE CHOICE QUESTIONS)
  1. Relation between voltage sensitivity (sigma(v)) and current sensitivit...

    Text Solution

    |

  2. When 50Omega resistance is connected to one voltmeter, its range is ob...

    Text Solution

    |

  3. When 3 mA and 5 mA currents are passed through two galvanometers P and...

    Text Solution

    |

  4. 1A current is passed through a parallel combination of 8Omega resistan...

    Text Solution

    |

  5. When 2.5Omega shunt is connected with 25Omega resistance of galvanomet...

    Text Solution

    |

  6. Give unit of torsional constant.

    Text Solution

    |

  7. To turn galvanometer into ammeter,

    Text Solution

    |

  8. Resistance of galvanometer is G. If shunt required to make its range n...

    Text Solution

    |

  9. Resistance of ammeter is ROmega. What will be the required shunt to de...

    Text Solution

    |

  10. The resistance of galvanomenter is G and its current capacity is I(g)....

    Text Solution

    |

  11. A galvanometer coil has a resistance of 12Omega and the metre shows fu...

    Text Solution

    |

  12. The current capacity of ammeter having 9Omega resistance is 1A. Now to...

    Text Solution

    |

  13. Range of voltmeter with increase in series resistance.

    Text Solution

    |

  14. Resistance of ammeter made by combination of 20Omega galvanometer and ...

    Text Solution

    |

  15. Wire used for shunt should be

    Text Solution

    |

  16. By connecting shunt of 12Omega resistance, the deflection of galvanome...

    Text Solution

    |

  17. Resistance of ammeter is ROmega. What will be the required shunt to de...

    Text Solution

    |

  18. One rectangular coil carrying current I, has N no. of identical turns,...

    Text Solution

    |

  19. A conducting rod of mass 1 kg and length 1 m is suspended by two strin...

    Text Solution

    |

  20. An electron of mass m and charge q is travelling with a speed v along ...

    Text Solution

    |