Lt 8 Flashcards
1
Q
Ohms law is expressed by the equations:
A
E=I/R
E/R=I
E/I=R
2
Q
True or faulse
Voltage is directly proportional to Current
A
True
3
Q
Inversely proportional is?
A
Opposite but at the same magnitude
4
Q
When resistance is up:
A
Current is down
5
Q
Current cannot be changed without changing the
A
voltage or resistance
6
Q
Is it the current that hurts you?
A
It’s the amount of voltage and lack of current
7
Q
What is what’s law?
A
P=ExI
P/E=I
P/I=E
8
Q
Can a conductor be 100% efficient?
A
No, all conductors have resitance
9
Q
What is the energy lost in conductors called?
A
I2R
10
Q
1 horse power equals:
A
746 watts
11
Q
%Efficiency =
A
Output/Imputx100
