A Solenid is formed by winding:
Correct answer: B. Wire in a helix around a cylindrical surface
- A. Wire in a helix around a box
- B. Wire in a helix around a cylindrical surface
- C. Wire in a helix on a plain surface
- D. Cannot be made using wire
Explanation
A solenoid is an instrument that consists of copper coiling over a cylinder designed to create a strong magnetic field inside the coil because of the flow of current through the coil. By wrapping the same wire many times around a cylinder, the magnetic field due to the flow of current can become quite strong.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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