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Electrical Engineering
Ohms Law
Quiz 2
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Q.1
According to Ohm's Law
V is directly proportional to I
V is inversely proportional to I
V is directly proportional to vI
All of the above
Q.2
Approximately how much current flows through a 3.3 MO resistor across a 30 V source?
9 µA
90 µA
900 µA
9000 µA
Q.3
An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately
385 Ω
38.5 Ω
3.1 Ω
31 Ω
Q.4
A current of 200 µA through a 6.8 kΩ resistor produces a voltage drop of
34.4 V
340 V
13.6 V
1.36 V
Q.5
How much voltage is needed to produce 2.5 A of current through a 200 Ω resistor?
50 V
500 V
80 V
8 V
Q.6
According to Ohm's Law, if you were to double the voltage and double the resistance, what would happen to the flow of current?
It would stay the same
It would increase 2x
It would increase 4x
It would decrease 2x
Q.7
In order to electrical current to flow through a wire the wire must be connected in a ____________ that includes a source of electrical current.
averager matter
Complete loop
In an incomplete loop
Interrupted Circuit
Q.8
According to Ohm's Law, if you were to triple the voltage of a circuit without changing the resistance, what would happen to the flow of current?
It would stay the same
It would increase by 2x
It would increase by 3x
It would decrease by 3x
Q.9
How much resistance does a heavy duty flashlight have if it has a current ofmA flowing through it and is beingpowered by four 1.5 V cells?
0.15Ω
1.5Ω
15Ω
150Ω
Q.10
What type of energy is the electrical energy from the battery being converted into in this radio?
Heat and light
Sound and light
Sound and heat
Potential energy
Q.11
A portable radio connected to a 9.0 V battery draws a current ofA. What is the resistance of the radio?
0.036Ω
0.36Ω
3.6Ω
36Ω
Q.12
Calculate the current an electric clothes dryer draws when it is connected to aV source and has a resistanceof 9.2 Ω.
5A
15A
25A
35A
Q.13
What is the potential difference across an electrical load that has a resistance of 4 Ω and a current of 3 A flowing through it?
4V
8V
12V
16V
Q.14
Electricity is the flow of _________.
protons
neutrons
electrons
Q.15
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producingVolts
15 Ohms
4 Ohms
0.3333 Ohms
2 Ohms
Q.16
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
10 volts
1 volt
48 volts
5 volts
Q.17
To complete a circuit the switch must be
unattached
open
closed
It depends
Q.18
What word means how hard it is for electrons to flow through.
Current
Voltage
Resistance
Power
Q.19
Voltage divided by Resistance(V / R)
Current
Power
Ohms
Watts
Q.20
If the Voltage is increased and the resistance stays the same, Current will
Increase
Decrease
Stay the same
X
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