can we create electricity from a magnetic field? electromagnetic induction
TRANSCRIPT
• Can we create electricity from a magnetic field?
Electromagnetic Induction
Electromagnetic Induction
• Electric current can be created using a magnet by 2 different methods:
• 1. By moving a conductor inside of a magnetic field.
• 2. By moving a magnet around a conductor.
Therefore, by using magnets you can control the current in your circuit.
Different Types of Switches
Electrical Function
• The function that an electrical switch fulfills is called control.
• The purpose of a control is to open and close an electric circuit.
Forms of switches.
• All of these are binary, meaning they are either completely on (contact made) or completely off (contact broken).
• Rocker switch, ex: power bar switch
• Toggle switch, ex: light switch
• Push-button switch, ex: power button on most appliances
• Magnetic contact switch, ex: alarm system, the magnet is pulled away from the switch when the door opens and the alarm goes off.
Could you figure it out?
Types of Switches
Your task
• Circuit design: – Create a circuit that contains the following
elements: • 4 light bulbs each controlled separately. • A resistor • Only 2 switches.
• You may work with a partner. • Draw your circuit on a loose leaf and hand it in.