Current and voltages Flashcards
0
Q
What is current not used for
A
Not used for electric devices
1
Q
What is current the rate of
A
The rate of charge
2
Q
What is the equation for current
A
I= Q/T
3
Q
What is the equation for charges
A
Current x time
4
Q
What are the symbols for charge current and time
A
Q= charge I= current T= time
5
Q
What can measure current
A
An ammeter
6
Q
What is the units for current
A
Amperes (A)
7
Q
What is the unit for charge
A
Coulombs (c)
8
Q
The conclusion of the difference between current and voltage
A
A filament bulb does not hold a constant relationship between current and voltage. The resistor of the bulb increases at higher voltages, due to the board warming up
This means that the current does not rise in proportion to the voltage, so there is a curve
