What four things does every circuit need?

Power source, load, control component, and a conductor.

The rate at which energy can be transferred.

What would happen to lights A and B, if light C were to break?

Lights A and B would both go out

What is shown in the provided circuit?

Negative/positive light legs in wrong pin holes (not attached to button)

What is the difference between an OPEN and a CLOSED circuit?

Closed (endless path for current) & Open (interrupted path for current)

A series circuit is one that ...

If one component burns out, the remaining will de-energize and turn off.

Friction that impedes flow of current through the circuit.

A parallel circuit is one that ...

If one component burns out, the remaining have electricity and will stay on

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IET Final Exam Review

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Questions 31

Answers

1
What four things does every circuit need?
Power source, load, voltage, and a conductor.
Power source, load, control component, and a cell.
Power source, load, control component, and a conductor.
Resistance, wire, voltage, and LEDs.
2
A battery is NOT a method for storing electricity
False
True
3
What is power?
The ability to influence the behavior of others or the course of events
The force put into the energy being used.
The rate at which energy can be transferred.
The ability to act in a particular way, especially as a faculty or quality.
4
What would happen to lights A and B, if light C were to break?
Lights A and B would both go out
Lights A and B would remain lit
Lights A and B would flicker on and off
Light A would remain lit, while light B would go out
5
What is shown in the provided circuit?
Jumper wires in the wrong pin holes
Negative/positive light legs in wrong pin holes (not attached to button)
A correctly wired series circuit
Button should not be across the middle of the breadboard
6
The shorter leg of the LED is the positive leg.
False
True
7
If an electrical circuit has a low amount of resistance, there will be ...
Low current flow
Medium current flow
No current flow
High current flow
8
A breadboard is an electrical prototyping device
True
False
9
Which is not a renewable energy resource?
Solar Energy
Natural Gas Energy
Wind Energy
Hydroelectric Energy
10
The pressure from an electrical circuit's power source that pushes charged electrons through a conducting loop, is ...
Conductance
Voltage
Current
Resistance
11
What is the difference between an OPEN and a CLOSED circuit?
Open has little to no resistance & closed is has high resistance.
They are the same, just a switch is disengaged in one versus the other.
Open (endless path for current) & Closed (interrupted path for current)
Closed (endless path for current) & Open (interrupted path for current)
12
Which of the following is necessary to create electricity?
Power
Conductors
Control Components
Electrons
13
A series circuit is one that ...
If one component burns out, the remaining components will flicker.
If one component burns out, the remaining will de-energize and turn off.
If one component burns out, the remaining will stay energized and lit.
If one component burns out, eletricity can go to remaining components.
14
What type of circuit diagram is this?
Schematic Diagram
Ladder Diagram
Linear Diagram
Pictorial Diagram
15
What is the following circuit component?
A resistor
A motor
A light
A railroad crossing
16
What is the following circuit component?
A light
A motor
A resistor
A railroad crossing
17
The direction that a resistor is put into a circuit matters
True
False
18
What is resistance?
A device that stops the flow of electricity in a circuit.
Friction that impedes flow of current through the circuit.
A device that impedes flow of current through a circuit.
Friction that speeds up the flow of current through a circuit.
19
Is the following circuit PARALLEL or SERIES?
Parallel
Series
20
What is the following resistor's value?
390k Ohms +/- 5%
3900k Ohms +/- 10%
270k Ohms +/- 5%
21
A parallel circuit is one that ...
If one component burns out, the remaining components will have less power
If one component burns out, the remaining have electricity and will stay on
If one component burns out, the remaining will de-energize and turn off
If one component burns out, eletricity cannot go to remaining components
22
If an electrical circuit has a high amount of resistance, there will be ...
High current flow
Medium current flow
No current flow
Low current flow
23
Is the following circuit PARALLEL or SERIES?
Series
Parallel
24
Electricity flows from negative to positive in a circuit.
False
True
25
Is the following circuit PARALLEL or SERIES?
Parallel
Series
26
What is the following resistor's value?
10k Ohms +/- 10%
100k Ohms +/- 5%
1000k Ohms +/- 5%
10k Ohms +/- 5%
27
What is the following circuit component?
A railroad crossing
A resistor
A light
A switch
28
The international unit used for measuring current, is known as ...
The Ampere (Amp)
The Ohm
The Volt
The BTU
29
What is shown in the provided circuit?
Correctly wired parallel circuit
Correctly wired series circuit
Incorrectly wired series circuit
Correctly wired series-parallel circuit
30
What type of circuit diagram is this?
Ladder Diagram
Linear Diagram
Pictorial Diagram
Schematic Diagram
31
What is another term for amperage?
Power
Resistance
Voltage
Current

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