Electrical Circuits Quiz

A thermistor's resistance __________ when temperature goes down.

• Decreases

• Increases

• Stays the same

• These two do not have an effect on each other

When adding a resistance to a parallel circuit the total resistance?

• Stays the same

• Decreases

• Increases

• Cannot be determined

When a resistance is added in series to a circuit the amperage will?

• Increase

• Decrease

• Stay the same

• Cannot be determined

When testing resistance on a component, you need to do what prior to testing?

• Isolate component

• Make sure it is not powered

• Black lead in common, red lead volt ohm port

• All of the above

If the light in the circuit is 36 watts on a 12 volt system the amperage would be?

• .3 amps

• 24 amps

• 3 amps

• Watts cannot be used determine amps

Series circuit with 2 resistors, 6 ohms a piece, supplied by 12 volts, what would the amp reading at the ground wire be?

• You cannot test amps at the ground wire

• 1 amps

• 2 amps

• 3 amps

72 watt fan motor on a 12 volt circuit would have what amp reading?

• .16 amps

• 6 amps

• 60 amps

• Watts cannot be used to determine resistance

Tags

CCSS.8.EE.A.1

Source voltage is another way to term voltage drop?

• True

• False

What is the unit for resistance?

• Moans

• Homs

• Ohms

Circuit in which electric current has more than one path to follow. 

• series circuit
• parallel circuit
• charging by contact
• charging by induction