The magnetic field lines in a solenoid, is similar to a bar magnet. One end of the coil acts like a magnetic north pole, while other acts like a south pole. The magnetic field produced by solenoid has all properties of a bar magnet.
1. What is a solenoid?
a. A coil of many triangular turns of wire wrapped as a cylinder.
b. A coil of many circular turns of wire wrapped as a cylinder.
c. A coil of many circular turns of wire wrapped as a square.
d. A coil of many circular turns of wire wrapped as a cone.
2. The copper wire in a solenoid is not insulated. True or false?
a. TRUE
b. FALSE
3. What is the nature of field lines inside a solenoid?
a. Parallel
b. Intersecting
c. Grid-like
d. Curvy
4. How can you increase the magnetic field of a solenoid?
a. Decreasing temperature
b. Removing the insulation of copper wire
c. Increasing temperature
d. Increasing number of turns of wire
5. On which factors does the strength of the magnetic fields in a solenoid depend upon?
a. Turns of the wire
b. Current
c. Both (A) and (B)
d. Temperature
