WorksheetsElectric Circuits
Total questions: 36
Worksheet time: 2hrs 48mins
The following image respresents a
LED
Series circuit
Parallel circuit
Resistor
The following image respresents a
LED
Series circuit
Parallel circuit
Resistor
In a series circuit, the current...
is different for each resistor
is equal to zero
is the same for each resistor
is equal to the power
In a parallel circuit, the voltage...
is different for each resistor
is the same for each resistor
is equal to the sum of each voltage
is equal to zero
The formula to find the equivalent resistance in a series circuit is...
The formula to find the equivalent resistance in a parallel circuit is...
The equivalent resistance of the following circuit is(R1= 20 Ω, R2=50 Ω)...
70 Ω
30 Ω
14.28 Ω
23.4 Ω
The equivalent resistance of the following circuit is...
9.23 Ω
90 Ω
60 Ω
70 Ω
Which resistor has the greatest voltage across it? If these were light bulbs, which would be the brightest?
R2, R2
R1, R1
R2, R3
R3, R2
What is the equivalent resistance in this branch of a circuit?
45Ω
256Ω
8Ω
73Ω
What is the voltage across R5 and the current through R7?
0.5 V, 0.125 A
1 V, 0.5 A
0.5 V, 0.75 A
1 V, 0.125 A
Determine the total current in the circuit and the energy used every minute by the 30Ω resistor.
0.17 A, 20 J
0.17 A, 0.34 J
0.08 A, 20 J
0.08 A, 0.34 J
What voltage would be needed across A-B to create a current of exactly 2 Amps in the 4 Ω resistor?
13.33 Volts
12.74 Volts
9.25 Volts
1.5 Volts
Determine the value of the highest resistor from the graph
36 Ω
21Ω
30 Ω
81 Ω
According to the junction rule, what must I1 be?
3.5 A
7.5 A
2 A
5.5 A
If both light bulbs are identical and both switches were in the on position, how would the brightness of both bulbs change if one switch were turned off?
One bulb would go off and the other would remain the same brightness
No change in either bulb
Both bulbs would go off
One bulb would go off and the other would become brighter
If there were a switch in series with R3 and this switch was open, determine the current in the circuit. If a 0.5 A fuse were placed in series with the battery, would the fuse blow when the switch is closed?
0.3 A, No
0.3 A Yes
0.03 A, No
0.03 A, Yes
Which image shows the correct placement of meters to measure the current and voltage for the resistor?
1
2
3
4
Which ammeter is reading the highest current?
1
2
they are both equal
4
Which voltmeter is reading the highest voltage?
they are both equal
2
3
4
In the diagram, determine how many electrons travel through the battery each minute
1.3 x 1020 electrons
21 electrons
17.7 x 10-21 electrons
5.8 x 1016 electrons
As resistors are added to a parallel branch in a circuit, the total current in the circuit will______________.
increase
decrease
remain the same
fluctuate wildly
Determine the new resistance of a 8 Ω cylindrical resistor if you triple its length and increase its radius by a factor of two.
6 Ω
96 Ω
8 Ω
12 Ω
How many 2 Ω resistors would have to be placed in parallel to equal 1 Ω?
2
1
4
It's not possible to create 1 Ω with 2 Ω resistors
Determine the energy used in 8 minutes by a 6 Ω resistor drawing a current of 0.25 A.
0.375 J
3 J
180 J
720 J
What is the flow of electric charges called?
voltage
current
resistance
electricity
The defining word equation for the Volt
energy per unit charge
rate of flow of charge
work per unit time
product of electrical resistance and current
Which of these statements are true?
Electrons flow at the same speed at all points in a circuit
Electrons flow at the same speed at all points in a parallel circuit
Electrons flow at the same speed in all circuits
Electrons flow at the same speed at all points in a series circuit
