Electricity Flashcards
Formula for charge
Q =it
Unit for Charge
C
Formula = To calculate voltage
VIR
Formula = to calculate Energy
E=pt
Unit for energy
J for joules
Any formula for power
P=IV
P=I2R
P=V2/R
Formula to Calculate voltage with potential dividers
V1 R1
— = —
V2 R2
Calculate the voltage of one resistor with potential dividers
V1 = (R1 / RT)*Vs
a.c definition
Alternating current:
Always changing directions at regulated intervals
d.c definition
Direct Current:
Always travels in one direction
What does direct cutrent look like on an oscilloscope
A straight line
What does alternating current look like on an oscilloscope
A wavy line
Finish the sentence:
Positive charged particles have a
___________ force .
Outward
Finish the sentence:
Negative charged particles have a
___________ force .
Inward
Charges with the same nature ________
Repel from eachother