Basic Switching Theory
1. Simple calculations for a single resistor. Fill in the missing values in the chart. NOTE an old trick
in computing values, when you are working with a 1k resistor, the value of the current will be
numerically the same as the voltage, only expressed in milliamps. This makes sense when you
remember that 1k is $10^3$, and milli- is $10^{-3}$. (m=milli-, ma=milliamps, M=mega-) (35 points)
Vcc
R
Voltage
Current
Resistance
Power
5v
1k
12v
1k
5v
1M (meg)
5v
1m (milli)
5v
10ma
5v
5ma
0.5v
1k
5v
5mW
25ma
1k
10ma
1M (meg)
1a
1w
100
100w
0.1ma
1k
5v
0.1ma
5v
10k
5w
0.1mw
10v
1.5?A