Home
Class 10
PHYSICS
The rest positions of the needles in a m...

The rest positions of the needles in a milliammeter and voltmeter when not being used in a circit are shown in the figure. The zero error and least count of these two instruments are

A

(+4mA, -0.2V) and (1mA, 0.1V) respectively

B

(+4mA, -0.2V) and (2mA, 0.2V)respectively

C

(-4mA, +0.2V) and (2mA, 0.2V) respectively

D

(-4ma, +0.2V) and (2mA, 0.1V) respectively

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    MODERN PUBLICATION|Exercise EXERCISE|303 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MODERN PUBLICATION|Exercise EXERCISE|265 Videos

Similar Questions

Explore conceptually related problems

A conducting rod PQ of length 20 cm and resistance 0.1 Omega rests on two smooth parallel rqails of negligible resistance AA' and CC'. It can slide on the rails and the arrangement is positioned betwaeen the poles of a permanent magnet producing unifrom magnetic field B=0.4 T. The rails, the rod and the magneitc field are in the three mutually perpendicular directions as shown in the figure. if hte ends A and C of the rails are short cicuited, find the External force required to move the rod with uniform velocity v=10cm/s.

A conducting rod PQ of length 20 cm and resistance 0.1 Omega rests on two smooth parallel rqails of negligible resistance AA' and CC'. It can slide on the rails and the arrangement is positioned betwaeen the poles of a permanent magnet producing unifrom magnetic field B=0.4 T. The rails, the rod and the magneitc field are in the three mutually perpendicular directions as shown in the figure. if hte ends A and C of the rails are short cicuited, find the Power required to move the rod with velocity v= 10 cm/s

A metal disc is winging freely between the poles of an electromagnet, as shown in the figure. When the electromagnet is switched on, the disc comes to rest after a few oscillations. Use Faraday's law of electromagnetic induction to explain why an e.m.f. is induced in the disc.

Fig.110 shows a capacitor made of two circular plates each of radius R=12 cm and separated by 5 cm.The capacitor is being charged by an external source (not shown in the figure).Use modified Ampere's circuital law to determine magnetic field at the point P at a distance of 0.5 m from the centre of the plats in the plane midway between them,when the chargingg current is 2A? .

A 20 g bullet pierces through a plate of mass M_1 = 1 kg and then comes to rest inside a second plate of mass M_2 = 2.98 kg as shown in figure. It is found that the two plates, initially at rest, now move with equal velocities. Find the percentage loss in the initial velocity of the bullet when it is between M_1 and M_2 Neglect any loss of material of the plates, due to action of bullet.

Two masses 5 kg and 3 kg are suspended with the help of massless inextensible strins as shown in the figure. Calculate T_1 and T_2 when whole system is going upwards with acceleration = 2ms^2 (use g=9.8 ms^-2)

In the figure, time- distance graph of a linear relation is given : Two positions of time and distance recorded as: When T = 0, D = 2 and when T = 3, D = 8. Using the concept of slope, find the law of motion i.e. how distance depends upon time.

Two cells, having the same emf, are connected in series through an external resistance R. Cells have internal resistance r_(1) and r_(2) (r_(1) gt r_(2)) respectively. When the circuit is closed, the potentail difference across the first cell is zero the value of R shown in the figure

MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. The following instruments are availabel in a laboratory Miliammeter A1...

    Text Solution

    |

  2. In an experiment to determine equivalent resistance of two resistors R...

    Text Solution

    |

  3. The rest positions of the needles in a milliammeter and voltmeter when...

    Text Solution

    |

  4. The only correct statement for the two circuits X and Y shown below:

    Text Solution

    |

  5. The only correct statement for the following circuit is

    Text Solution

    |

  6. Three students (A),(B) and ( C) connected their two resistor R1 and R2...

    Text Solution

    |

  7. To study the dependence of current on the potential difference across ...

    Text Solution

    |

  8. While performing the experiment to study the dependence of current on ...

    Text Solution

    |

  9. In an experiment to determine equivalent resistance of two resistors R...

    Text Solution

    |

  10. A 6 V battery for internal resistance 2 ohm is connected across a 10 o...

    Text Solution

    |

  11. A student set up his for finding the equivalent resistance of a seris ...

    Text Solution

    |

  12. Complete the prime factor tree :

    Text Solution

    |

  13. An ammeter and a voltmeter are joined in series to a cell. Their readi...

    Text Solution

    |

  14. The number of division in ammeter of range 2A is 10 and voltmeter of r...

    Text Solution

    |

  15. Ohms law experiment is performed seperately with individual resistors ...

    Text Solution

    |

  16. In Ohm's law experiment the physicla quantity quantities which is are ...

    Text Solution

    |

  17. The graph between current and the potential diference in the experimen...

    Text Solution

    |

  18. The circuit diagram shown below is used to find the effective resistqn...

    Text Solution

    |

  19. A student set up electric circuit shown here for finding the equivalen...

    Text Solution

    |

  20. In the circuit given ahead, the resistors R1 and R2 are connected

    Text Solution

    |