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WorksheetsW14D2_Resistor Network
Total questions: 20
Worksheet time: 41mins
Which resistor is in series with resistor R?
R1
R2
R3
R4
The two ends of a 3.0-ohm resistor are connected to a 9.0-V battery. What is the current through the resistor?
27 A
6.3 A
3.0 A
0.33 A
The two ends of a 3.0-ohm resistor are connected to a 9.0-V battery. What is the total power delivered by the battery to the circuit?
3.0 W
27 W
0.33 W
0.11 W
The basic function of an electromotive force in a circuit is to do which of the following?
Convert electrical energy into some other form.
Convert some other form of energy into electrical.
None of the above choices are valid.
Three resistors connected in parallel have individual values of 4.0, 6.0, and 10.0 ohm, respectively. If this combination is connected in series with a 12-V battery and a 2.0-ohm resistor, what is the current in the 10-ohm resistor?
0.59 A
1.0 A
11 A
16 A
Three resistors connected in parallel each carry currents labeled I1, I2 and I3. Which of the following expresses the value of the total current IT in the combined system?
IT = I1 + I2 + I3
IT = (1/I1 + 1/I2 + 1/I3)
IT = I1 = I2 = I3
IT = (1/I1 + 1/I2 + 1/I3)-1
Which two resistors are in parallel with each other?
R and R4
R2 and R3
R2 and R4
R and R1
If R1 < R2 < R3, and if these resistors are connected in parallel in a circuit, which one has the highest current?
R1
R2
R3
All have the same current.
What is the maximum number of 60-W light bulbs you can connect in parallel in a 120-V home circuit without tripping the 30-A circuit breaker?
11
35
59
3600
The following three appliances are connected to a 120-V house circuit: i) toaster, 1 200 W, ii) coffee pot, 750 W, and iii) microwave, 800 W. If all were operated at the same time, what total current would they draw?
3.0 A
5.0 A
10 A
23 A
A hair dryer draws 1 200 W, a curling iron draws 800 W, and an electric light fixture draws 500 W. If all three of these appliances are operating in parallel on a 120-V circuit, what is the total current drawn?
19.4 A
20.8 A
25.4 A
36.7 A
Household circuits are wired in ___________________.
series
parallel
both series and parallel
neither series nor parallel
Household 120-V outlets are made to accept three-pronged plugs. One of the prongs attaches to the “live” wire at 120 V, and another attaches to the “neutral” wire that is connected to ground. What is the round third prong for?
It serves as a backup to the hot wire.
It lets the appliance run if the neutral wire breaks.
It connects the case of the appliance directly to ground for safety purposes.
Nothing electrical, it is for mechanical sturdiness.
If total voltage is 40 V. Find I1
10.78 A
7.19 A
3.59 A
7.65 A
If total voltage is 40 V. Find V5
10.78 V
7.65 V
21.56 V
7.56 V
A resistor has color bands of B, Gr, Br, Go. What is the tolerance of the resistor?
+/- 5%
+/- 10%
+/- 1%
+/- 2%
A resistor has color bands of B, Gr, Br, Go. What is the value of the tolerance of the resistor?
34 ohms
680 ohms
714 ohm
646 ohm
A resistor has color bands of B, Gr, Br, Go. What is the maximum rated value of the resistance of the resistor?
34 ohms
680 ohms
714 ohm
646 ohm
A resistor has color bands of B, Gr, Br, Go. What is the minimum rated value of the resistance of the resistor?
34 ohms
680 ohms
714 ohm
646 ohm
Three resistors with values 6 ohms, 4 ohms, and 2 ohms connected in series. Which will dissipate the greatest power?
6 ohms
4 ohms
2 ohms
none of the resistors
