MCQ
A moving coil galvanometer has 150 equal divisions. Its current sensitivity is 10 divisions per milliampere and voltage sensitivity is 2 divisions per millivolt. In order that each division reads 1 volt, the resistance in ohms needed to be connected in series with the coil will be
  • A
    99995
  • 9995
  • C
    $10^3$
  • D
    $10^5$

Answer

Correct option: B.
9995
(b) 9995

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Two charges each of magnitude $Q$ are fixed at $2a$ distance apart. A third charge ($-q$ of mass $'m'$) is placed at the mid point of the two charges; now $-q$ charge is slightly displaced perpendicular to the line joining the charges then find its time period
When light enters from air to water, then its
The wavelength of light visible to eye is of the order of
A series combination of two resistors 1 W each is connected to a 12 V battery of internal resistance 0.4 W. The current flowing through it will be
What is the least radius through which an optical fiber of core diameter $0.05\, mm$ may be bent (as shown in figure) without serious loss of light ? The refractive index of the core is $1.6$ and that of cladding is $1.5.$.....$mm$
Which of the following statements regarding magnetic lines of force is correct?
The self-inductance of a long solenoid carrying current is independent of:
The electric field near a conducting surface having a uniform surface charge density σ is given by
Two charged particles of masses $m$ and $2m$ have charges $+2q$ and $+q$ respectively. They are kept in uniform electric field and allowed to move for some time. The ratio of their kinetic energies will be
Statement $I :$ When a Si sample is doped with Boron, it becomes $P$ type and when doped by Arsenic it becomes $N-$type semi conductor such that $P-$type has excess holes and N-type has excess electrons.

Statement $II$ : When such $P-$type and $N-$type semi-conductors, are fused to make a junction, a current will automatically flow which can be detected with an externally connected ammeter.

In the light of above statements, choose the most appropriate answer from the options given below.