Electromagnetism 1
This character was green and small but yet, very powerful he was.
What is a Yoda?
These are the two ways to increase the strength of an electromagnet.
What is increasing the number of turns in the solenoid or increasing the amount of current?
When a wire is exposed to a changing magnetic field, this is produced.
What is an electrical current?
This is a solenoid wrapped around a bar of iron or other ferromagnetic material.
What is an electromagnet?
The process of generating electric current with a changing magnetic field is called this.
What is electromagnetic induction?
When a current flows through a wire, this is produced.
What is a magnetic field?
The right hand rule explains this.
What is the direction of a magnetic field in relation to the direction of an electric current?
A transformer that increases the voltage is known as this.
What is a step up transformer?
This states that a magnetic field produces an electric current as long as the magnetic field is changing.
What is Faraday’s Law?
The thumb of your hand in demonstrating the right hand rule of electromagnetism indicates this.
What is the direction of a current in a conductor?
If the input coil has more coils than the output coil in an electrical transformer, then the resulting voltage will be this in relation to the input voltage.
What is less voltage?
A transformer that decreases the voltage is known as this.
What is a step down transformer?
This is a device that uses an electromagnet to change electrical energy to kinetic energy.
What is an electric motor?
An electric transformer is composed of these.
What is two coils wrapped around an iron core?
Electrical transformers only work with this type of current.
What is alternating current?
A device that uses electromagnetic induction to change the voltage of electric current is known as this.
What is an electric transformer?
The fingers of your hand in demonstrating the right hand rule of electromagnetism indicates this.
What is the direction of the magnetic field?
If the input coil has less coils than the output coil in an electrical transformer, then the resulting voltage will be this in relation to the input voltage.
What is more voltage?
Magnetism produced by electric current is known as this.
What is electromagnetism?
Generators used to power homes and cars tend to produce this type of electrical current.
What is alternating current?
This is the reason the ends of a solenoid have the strongest magnetic field.
Where is where the magnetic field is most concentrated?
A device that changes kinetic energy into electrical energy via electromagnetic induction is known as this.
What is a generator?
This is a coil of wire with an electric current flowing through it.
What is a solenoid?
This is used to turn a shaft in an electric motor.
What the repulsion between a permanent magnet and an electromagnet?
The magnetic field around a solenoid is strongest here.
Where is the ends of the solenoid?