MCQ
What is moving coil galvanometer used for?
  • A
    Measurement of voltage only
  • B
    Measurement of resistance
  • Measurement of small currents
  • D
    Measurement of electric field

Answer

Correct option: C.
Measurement of small currents

Moving Coil Galvanometer is an instrument used for the detection and measurement of current.
It is sensitive instrument and can measure current even if it is only a few microamperes.
It was invented by Johann Schweigger in the $1800s.$

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

Potentiometer measures the potential difference more accurately than a voltmeter because:
An aircraft with a wing-span of $40\, m$ flies with a speed of $1080\, km\, h^{-1}$ in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of earth's magnetic field is $1.75 \times 10^{-5} T$. Then the emf that develops between the tips of the wings is.......$V$
Two cells of emfs approximately $5V$ and $10V$ are to be accurately compared using a potentiometer of length $400\ cm.$
Current i is carried in a wire of length L. If the wire is turned into a circular coil, the maximum magnitude of torque in a given magnetic field B will be
Two conductors have the same resistances at $0^{\circ} \mathrm{C}$ but their temperature coefficients of resistance are $\alpha_1$ and $\alpha_2$. The respective temperature coefficients for their series and parallel combinations are :
Two long conductors, separated by a distance d carry current $I_1$ and $I_2$ in the same direction. They exert a force F on each other. Now the current in one of them is increased to two times and its directions is reversed. The distance is also increased to $3d.$ The new value of the force between them is
The angle of dip at a place is $60°$. At this place the total intensity of earth's magnetic field is $0.64 $ $units$. The horizontal intensity of earth's magnetic field at this place is......$ units$
Magnetic dipole moment is a vector quantity directed from:
Which of the following will produce greater chromatic aberration?
At the surface of a charged conductor electrostatic field must be $......$ to the surface at every point.