Voltage, Ohm's Law and Circuits Flashcards
(9 cards)
1
Q
What is current?
A
The flow of electrons, electrical charge transferred per unit time.
2
Q
What is Q=It?
A
Charge = Current times time
3
Q
What is voltage?
A
The potential difference (measure of the energy given to electrons), 1 v = 1 joule per coulomb.
4
Q
Voltage in a series circuit?
A
Vs=V1+V2+…
5
Q
Current in a series circuit?
A
Is=I1=I2=…
6
Q
Voltage in a parallel circuit?
A
Vp=V1=V2=…
7
Q
Current in a parallel circuit?
A
Ip+I1+I2+…
8
Q
What is V2=(R2/R1+R2)Vs?
A
V2 = Output Voltage, Vs = source voltage. It calculates voltage in resistors.
9
Q
What is V2/V1 = R2/R1?
A
Tells you that voltage is divided or amplified in proportion to resistance.
