Basic Concepts Flashcards
1
Q
Conductors
A
Gold
Copper
Aluminium
A material ability to conduct electric current - free electrons
2
Q
Insulators
A
Plastic
Rubber
Glass
3
Q
Semi conductors
A
Silicon
Germanium
4
Q
Coulomb of electron is
A
6.28 x 1018 electrons
5
Q
What is a Coulomb
A
One Amp of electricity per second
Current x time
6
Q
Electrical Power is defined as
A
The rate of doing work
7
Q
Power formula
A
Current x Voltage
8
Q
How is voltage measured
A
Via a voltmeter connected in parallel to measure volts - high resistance
9
Q
Formula For Resistance in series
A
Rt = R1 + R2 + R3
10
Q
Formula for calculating resistance in parallel
A
1/Rt = 1/R1+ 1/R2 + 1/R3
Inverse the answer
11
Q
Electrical work formula
A
Voltage x coulombs
12
Q
Electrical power is measured in
A
Watts
13
Q
Formula For Working Out Coloumbs
A
Current x Time
