Units Of Measurement Flashcards
How is Power measured
In Watts
How is energy measured
Joules
How is electrical resistance measured?
Ohms
How is conductance measured?
Siemens
How is electromotive force measured?
volt
1kg = ? Pounds
2.2
1fluid oz = ? Mililiters
30ml or cc
1 French = ? Millimeters?
0.33
1 inch = ? Centimeters
2.54
What is Ohms law?
V=IR
How is voltage measured?
In volts
What does the I stand for in the equation V=IR
Current; measures milliamp or amp
What does the R stand for in the equation V = IR?
Resistance
Measured in ohms
In ohms law, voltage is directly proportionate to —- and —-
Current and Resistance
Besides V=IR, how else can you calculate ohms law?
I=V/R
R=V/I
How would I calculate the current?
I=V/R
mA=volts/ohm
According to Ohms law, how is energy measured?
Joules
J=voltage/current/time
J = (Vsquared/I)*T
What symbol is used to represent ohms?
W
A series circuit has —- path of current flow, and a parallel circuit has —- path of circuit.
One
2 or more
To calculate a voltage drop in a series circuit you will…
Divide the total voltage by the total resistance.
I = V /RT
Amp = voltage/total resistance (ohm) within the circuit.
What happens if there is a break in a series circuit?
No current will flow.
What is a general rule of thumb for a series circuit?
The total resistance is equal to the sum of the resistors.
What is the general rule for parallel circuits?
The total resistance is always less then any of the branch resistance. And adding more parallel resistances to the paths cause the total resistance to decrease.
The property of an electrical circuit component through which current flows is proportional to the applied voltage is known as?
Resistance
