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Ohms Law Practice Questions
By Alvin Brown
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Last updated over 5 years ago
25 questions
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Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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Question 11
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Question 12
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Question 13
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Question 14
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Question 15
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Question 16
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Question 17
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Question 18
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Question 19
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Question 20
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Question 21
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Question 22
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Question 23
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Question 24
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Question 25
25.
The atomic structure of a metal can be describe as
Atoms all in a line with electrons on the right of their atom
Atoms arranged in a fixed lattice structure surrounded by a sea of electrons
Atoms rigidly spaced a part with electrons orbiting ONLY their atom
Current is
Opposition to the movement of charged particles
The movement of charged particles
The energy given to charged particles
Convential current goes from negative to positive
True
False
The higher the electric potential the more energy can be converted to electron movement (electric current) when there is a closed loop
True
False
For Current to be present in a circuit
There must be electric potential difference
There must be a closed loop
There must be two branches/loops
All of the above
The voltage or potential diffence is inversely proportional to the current generated by it
True
False
Resistance is
energy taken from charged particles
the opposition to the movement of charged particles
the movement of charged particles
There is a division of voltage across each branch of circuit components that are in series.
True
False
The effective resistance of the components in series will be smaller than the largest resistance in the series circuit (all are added together).
True
False
The total voltage (electrical potential energy) supplied to the circuit.
Electromotive Force
Battery download value
Energy Value
Gravitional Potential Energy
One way of finding the Electromotive Force is by adding all the voltages/potential differences dropped across each component in a circuit.
True
False
Calculate the current passing through a wire which has a potential difference of 27V flowing through a resistor of 3Ω
1A
9A
30A
19A
Calculate the current in a circuit consisting three resistors: 3Ω, 2Ω & 4Ω and a supply voltage of 27V.
2A
3A
4A
5A
If there is a break (loose wire) in a series circuit then no current will be in the circuit.
True
False
The effective resistance of the components in parallel will be less than the smallest resistance in the parallel configuration.
True
False
There is no division of voltage across each branch of circuit components that are in parallel.
True
False
Kirchoff's Current Law states
The sum of the current going into a junction is equal to the sum of the currents going out of a junction
The sum of the current going into a junction is NEVER equal to the sum of the currents going out of a junction
Calculate the value of i3
8A
9A
7A
15A
Calculate i4
16A
5A
7A
6A
When finding the resultant resistance in a Series/Parallel circuit always resolve parallel loops/branches before tackling series components.
True
False
Caculate the Total resistance when switch S1 is open.
2Ω
10Ω
14Ω
16Ω
Calculate the total resistance when switch S
1
is closed
14Ω
10Ω
4.67Ω
4.75Ω
Calculate the total resistance in the circuit above
21Ω
8Ω
3Ω
5Ω
Calculate the voltage drop across resistor R
1
9V
1V
5V
3V
Calculate the voltage drop across resistor R
5
9V
5.5V
4.5V
6V