NDA2018General AbilityGeneral ScienceActual
The magnetic field strength of a current- carrying wire at a particular distance from the axis of the wire
Options
- Adepends upon the current in the wire
- Bdepends upon the radius of the wire
- Cdepends upon the temperature of the surroundings
- DNone of the above
Correct answer
A. depends upon the current in the wire
Step-by-step solution
The magnetic field in space around an electric current is proportional to the electric current in it Similarly, In the given statement, the magnetic field strength of a current carrying wire at a particular distance from the axis of the wire depends upon the current in the wire.