When a coil of wire is moved through a magnetic field, _____.
the voltage is first raised and then lowered
electrical energy is transformed into mechanical energy
mechanical energy is transformed into electrical energy
a solenoid is created
When a coil of wire is moved through a magnetic field, mechanical energy is transformed into electrical energy. This phenomenon is known as electromagnetic induction, which was first discovered by Michael Faraday.
To understand why this happens, let's break it down. When a magnetic field cuts across a coil of wire, it creates a change in magnetic flux. This change in flux induces an electromotive force (EMF), which causes a flow of electric current within the wire. This current can be used to power electrical devices or charge batteries.
It's important to note that the voltage induced in the coil depends on several factors, including the strength of the magnetic field, the speed at which the coil moves, and the number of turns in the coil. The direction of the induced current can also be determined using Fleming's right-hand rule.
In the process of electromagnetic induction, electrical energy is converted from mechanical energy. This phenomenon is widely used in various applications, such as generators, transformers, and electric motors.