Current Electricity Flashcards
(17 cards)
Describe the symbol for a battery
three short lines, three long lines, alternating
Describe the symbol for a resistor
a zigzag
Describe the symbol for a voltmeter
A ‘V’ within a circle
Describe the symbol for a light bulb
A little loop within a circle
Describe the symbol for an ammeter
An ‘A’ within a circle
Define voltage
The amount of energy within electrons
Define current
The speed at which electrons travel
Define resistance
The ease at which electrons can travel
What is the unit of measurement for Voltage
Volts
What is the unit of measurement for current
Amperes
What is the unit of measurement for Resistance
Ohms
What is the symbol for Voltage
V
What is the symbol for Current
I
What is the symbol for Resistance
Short line, almost circle, short line
Calculation for Voltage
V=A(R)
Calculation for Current
A=V/R
Calculation for Resistance
R=V/A