MCQ
What is moving coil galvanometer used for?
- AMeasurement of voltage only
- BMeasurement of resistance
- CMeasurement of small currents
- DMeasurement of electric field
✓
Answer
- Measurement of small currents
Explanation:
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.
Explore more
Similar questions
The working of optical instruments like camera, microscope, telescope, etc. having glass lenses is based on a phenomenon of light. Identify the phenomenon.
In an atom, electrons revolve around the nucleus. This gives rise to:
A conducting disc of radius r spins about its axis with an angular velocity ω. There is a uniform magnetic field of magnetude B perpendicular to the plane of the disc. C is the centre of the ring.
A metallic block carrying current I is subjected to a uniform magnetic induction 
as shown in the figure. The moving charges experience a force 
given by ........... which results in the lowering of the potential of the face ........ Assume the speed of the carriers to be v
|
(a) eVB |
(b) eVB |
(c) -eVB |
(d) -eVB |
Boron rods in a nuclear reactor are used to:
A current flows in a conductor from east to west. The direction of the magnetic field at a points above the conductor is .....
|
(a) Towards north |
(b) Towards south |
(c) Towards east |
(d) Towards west |
Astigmatism (for a human eye) can be removed by using
|
(a) Concave lens |
(b) Convex lens |
(c) Cylindrical lens |
(d) Prismatic lens |
Which of the following rays has the maximum frequency
|
(a) Gamma rays |
(b) Blue light |
(c) Infrared rays |
(d) Ultraviolet rays |
The name atom belongs to which language?
In metals ____ are the mobile charges.