meters

Question 1

voltmeter

Answer 1

always connected in parallel with the voltage source. these have a very high internal impedance, otherwise knows as resistance.

(always connected in parallel with the source, it has very high impedance.)

Question 2

ammeter

Answer 2

these are connected in series in the circuit. it needs to be able to count the electrons that are coming through the line. these have low impedance (resistance)

(connected in series with the circuit while it is on. this has very low internal impedance.)

Question 3

ohmmeter

Answer 3

this is NEVER connected to an energized circuit. this has low impedance, so we can actually read it a face value.

(connected in parallel and NEVER to an energized circuit with very low impedance)