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WorksheetsSeries and Parallel Circuits
Total questions: 25
Worksheet time: 49mins
Match the Unit to its quantity
Ampere
Current
Watt
Power
Volt
Voltage
Joule
Energy
Ω
Resistance
In a parallel circuit if one of the light bulbs burns out the rest _________.
stop the flow of electricity
will go out
can still light up
This is an example of a _______ circuit
open
series
parallel
switch
Match the following
Battery
Switch
Resistor
How should a voltmeter be placed in order to measure the potential difference across the 24-Ω resistor?
stop the flow of electricity
can still light up
will go out
of the light bulbs burn out also
The equivalent resistance (total resistance) for the circuit shown is ___.
0.333 ohms
3 ohms
31 ohms
10 ohms
6 ohms
The equivalent resistance (total resistance) for the circuit shown is ___.
0.333 ohms
3 ohms
31 ohms
25 ohms
15 ohms
Three 9-ohm resistors connected in series have a total resistance of ___.
27 ohms
9 ohms
3 ohms
18 ohms
4.5 ohms
Three 9-ohm resistors connected in parallel have a total resistance of ___.
27 ohms
3 ohms
18 ohms
9 ohms
If a 12-W light bulb has 6 V of potential difference placed across it, the current flowing through it is ___.
0.5 A
6 A
2 A
72 A
3 A
An instrument is rated at 240 W if it is connected across a 120-V dc power supply.
(a) What current does it draw under normal operation?
(b) What is its resistance?
(a) 0.20 A (b) 360 Ω
(a) 60 A (b) 2.0 Ω
(a) 2.0 A (b) 60 Ω
(a) 0.2 A (b) 60 Ω
The picture shows the circuit diagram symbol for which item?
Cell
Switch
Bulb
Fuse
How should a voltmeter be placed in order to measure the potential difference across the 24-Ω resistor?
The voltage drop across R1 is ______________________________ V.
20
30
40
50
Ammeter devices should always be connected in...
series
parallel
doesn't matter
If A1 reads 5A, and A3 reads 3A, what should A2 read?
2A
3A
5A
1A
If R2>R3>R1. Which R have more current through it?
R1
R2
R3
all the same current
What is the total resistance (RT) across this circuit?
3 kΩ
10 kΩ
13 kΩ
18 kΩ
