Ch3

In laboratory our task was determining current-voltage characteristics of choke.
To determine the characteristics we had to set up a measurement system
consisting of the choke, voltmeter, ammeter,
power meter and inductor.
After mounting the system we made measurements.
Subsequently we had to determine the current-voltage characteristics of choke
with improved power factor in circuit, so we needed to extend our
measurement system by adding two ammeters and a capacitor.
Latterly, after improving the measurement system we made
new measurements to figure out the changes caused by power factor improvement.