MCQ
The force which makes magnet move:
- AGravitational field
- BMagnetic field
- CNuclear forces
- DAir drag
✓
Answer
- Magnetic field
Explanation:
Magnetic field created by the electric coils in the guideway walls and track propel the magnet to move forward.
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 work function of a metal is $ hc/\lambda_{0} $. Light of wavelength $ \lambda $ is incident on the surface of the metal. For emission of electrons from the metal the condition is :
→A solid conducting sphere of radius R1 is surrounded by another concentric hollow conducting sphere of radius R2. The capacitance of this assembly is proportional to
|
(a) |
(b) |
(c) |
(d) |
Twists of suspension fibre should be removed in vibration magnetometer so that
| (a) Time period be less | (b) Time period be more |
| (c) Magnet may vibrate freely | (d) Cannot be said with certainty |
The critical angle of a material is the angle of incidence for which the angle of refraction is:
The potential at a point due to an electric dipole will be maximum and minimum when the angles between the axis of the dipole and the line joining the point to the dipole are respectively
|
(a) 90° and 180 ° |
(b) 0° and 90° |
(c) 90 ° and 0° |
(d) 0° and 180° |
Which of the following series in the spectrum of hydrogen atom lies in the visible region of the electromagnetic spectrum?
As the net electric flux through a closed surface is zero, the total charge contained in the closed surface is also:
For diffraction of light, it is necessary that the size of the obstacle in comparison to the wavelength of light waves will be :
Which atom contains exactly 15 neutrons?
Relativistic corrections become neccssary when the expression for the kinetic energy $\frac{1}{2}\text{mv}^2$, becomes comparable with mc2, where m is the mass of the particle. At what de Broglie wavelength will relativistic corrections become important for an electron?
→