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If a light circuit is turned-on and it has power (battery voltage) on both the power side and the ground side of the bulb, this indicates ___________________________.
An open ground-side circuit
How must the DVOM be set-up to measure current?
In series with the circuit
Capacitors block AC current flow
False
Electrolytic capacitors are polarity sensitive.
True
Technician A says that resistance increases as the diameter of a conductor increases. Technician B says that resistance increases as the length of a conductor increases. Which technician is correct?
tech b
High resistance in a circuit ____________.
Reduces current flow through the circuit
Two techs are discussing how to measure the current of this circuit. Tech A says the meter placement is OK but the switch will need to close so current flows to the bulb. Tech B says the meter placement is fine and the switch should remain open. Who is correct?
tech b
To measure the voltage drop across the load, where would the meter leads be placed?
c and d
With the switch closed, what should the voltagedrop across the switch be?
almost 0v
If 12 volts is measured at point C and 2 volts is measured at point D, what is the voltage drop across the bulb?
10v
The readings in the previous question indicate a problem. What is it?
unwanted resistance in the ground side
If the amperage reading at point B is 2 amps, what is the amperage reading at point D?
2a
Two Techs are discussing a circuit with two parallel branches. One branch resistance is 10 Mega ohms and the other is 5 ohms. Tech A says the total circuit resistance will be somewhere between 5 ohms and 10,000,000 ohms. Tech B says the total circuit resistance will be close to but less than 5 ohms. Who is correct?
Tech b