Electricity Flashcards
What is an electric charge?
It’s a property of particles, positive or negative.
What’s the difference between static and current electricity?
Static: charges build-up
Current: charges flow.
How does a Van de Graaff generator show static electricity?
It creates static charge, which can make hair stand up.
What are some circuit symbols?
Symbols include a zigzag for resistor, a line for battery, and an open line for a switch.
What is supply voltage?
The total voltage provided in a circuit.
What’s the difference between series and parallel circuits?
Series: one path for current.
Parallel: multiple paths.
How do you measure current and voltage?
Current: Use an Ammeter (how much electricity flows)
Voltage: Use a Voltmeter (electric pressure)
Multimeter: Measures both current and voltage
What is Ohm’s Law?
V = I x R (Voltage = Current x Resistance)
Units for current, voltage, and resistance?
Current (A), Voltage (V), Resistance (Ω)
What’s an insulator vs. a conductor?
Insulator blocks electricity (like rubber).
Conductor allows it (like copper).
