Resistor values are given in ohms. A value may be selected to deliver a specific current at a given voltage. This is given in what is known as Ohm's Law where:
Voltage (V) = Current (A) X Resistance (Ohm)
A 12ohm resistor placed across a 12V battery would pass 1Amp of current and put out 12W of heat.
Measure the plate resistors' (R) voltage (E) and use Ohms law to convert that to amps (I). I=E/R
1 square unit
Gram
It is degrees.
OHM
centimeters
a litre.
Millimeters
A scale.
Power
It is a speed unit; km/hour or mile/hour, ....
The Newton.