Circuts Flashcards
_____ ___ - Formula used to calculate the relationship between voltage (V), current (I) and resistance (R) in an electrical circuit
Ohms law
_____ (aka potential difference) - Measured in volts (V). The potential difference that pushes electrons through a circuit. If there’s no voltage there is no current (Ex: outlet or battery)
Voltage
____ - Measured in amps (A). The rate at which charges flow through a complete circuit)
Current
_____ - Measured in ohms (omega symbol). the opposition to an electric currents flow (ex: a lightbulb)
Resistance
Voltage have a ___ relationship with current and resistance
Direct relationship
Current and resistance have an ___ relationship
Inverse relationship
____ measured in watts (W), depends on V, I, and R
Power
___ = charge (q) per time (t). 1 amp = 1 C/s
Current
—| I— (symbol for what?)
Voltage source (V)
——— (symbol for what?
Wire (A)
——(X)—- or —-(squiggle)—- (Symbol for what?)
Lightbulb (ohm symbol)
—-/\/\/— (Symbol for what?)
Resistor (ohm symbol)
—-⚫️/ ⚫️— (Symbol for what?)
Switch
—-(V)—- (Symbol for what?)
Voltmeter (V)
—(A)— (Symbol for what?)
Ammeter (A)
Wires have (high/low) resistance
Low resistance
Resistors (use/don’t use) the voltage that travels through the circuit
Use the voltage
Switches open (current can/cant flow) the circuit
Current Can’t flow
Switched close (current can/cant flow) the circuit
Can flow