Answer;
Solenoid
A coil of wire that carries an electric current is a solenoid
Explanation;
- Solenoid refers to the coil of a wire that is used as an electromagnet. Solenoid creates magnetic field from electric current and uses the magnetic field to generate motion.
- The magnetic field generated by a solenoid may be controlled by varying the amount of electric current in the circuit. Electromagnet are types of magnets whose strength can be varied using various variation in a solenoid such as the amount of electric current and also the number of coils in the solenoid.