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Electricity and Magnetism Practice Tests

These Grade 11 Science practice tests examine charge, current, voltage, resistance, series and parallel circuits, electric fields, potential, capacitance, magnetic forces, induction, motors, generators, and experimental analysis.

Skills covered

  • Applying \(V=IR\), \(P=IV\), charge-flow, energy, and series-parallel circuit relationships
  • Using electric field, electric potential, capacitance, and Coulomb-law ideas with units and direction
  • Explaining magnetic force, right-hand rules, electromagnetic induction, Lenz's law, motors, generators, and transformers
  • Applying Kirchhoff's junction and loop rules and reasoning about circuit protection
  • Interpreting V-I graphs, uncertainty, calibration, safe procedures, and experimental evidence

How to use these practice tests

Define the circuit or field system first. Choose the correct law, keep units consistent, and check signs, directions, energy transfers, and limiting cases.

For more Grade 11 Science practice, return to the Grade 11 Science category.

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1. Test

Grade 11 Electricity and Magnetism Practice Tests

Practice Grade 11 Science questions about charge, current, voltage, resistance, circuits, electric fields, capacitors, magnetic forces, induction, motors, generators, and experiments.

Choose the best answer. Define the circuit or field system, select the governing law, track units and direction, and check whether the result is physically reasonable.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is electric current?

Please select an answer first.

Correct answer: A

The correct answer is The rate at which electric charge flows.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Current is charge transferred per unit time: (I=\Delta Q/\Delta t), measured in amperes.
  3. Check signs, units, and direction: The correct answer is The rate at which electric charge flows.

Current is charge transferred per unit time: (I=\Delta Q/\Delta t), measured in amperes.

2. QuestionMultiple choice

What is electric potential difference?

Please select an answer first.

Correct answer: B

The correct answer is Energy transferred per unit charge.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Voltage is work or energy per charge, (V=\Delta U/q), and it drives charge through a circuit.
  3. Check signs, units, and direction: The correct answer is Energy transferred per unit charge.

Voltage is work or energy per charge, (V=\Delta U/q), and it drives charge through a circuit.

3. QuestionMultiple choice

What is the SI unit of electric charge?

Please select an answer first.

Correct answer: C

The correct answer is The coulomb.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Electric charge is measured in coulombs, while an ampere is a coulomb per second.
  3. Check signs, units, and direction: The correct answer is The coulomb.

Electric charge is measured in coulombs, while an ampere is a coulomb per second.

4. QuestionMultiple choice

What does electrical resistance describe?

Please select an answer first.

Correct answer: D

The correct answer is How strongly a material opposes charge flow.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Resistance measures opposition to current and relates voltage and current through (V=IR).
  3. Check signs, units, and direction: The correct answer is How strongly a material opposes charge flow.

Resistance measures opposition to current and relates voltage and current through (V=IR).

5. QuestionMultiple choice

A 12 V12\,\text{V} source is connected to a 4 Ω4\,\Omega resistor. What current flows?

Please select an answer first.

Correct answer: A

The correct answer is 3 A3\,\text{A}.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Ohm's law gives (I=V/R=12/4=3\,\text{A}).
  3. Check signs, units, and direction: The correct answer is 3 A3\,\text{A}.

Ohm's law gives (I=V/R=12/4=3\,\text{A}).

6. QuestionMultiple choice

What happens to current in a metal wire when its resistance increases at fixed voltage?

Please select an answer first.

Correct answer: B

The correct answer is The current decreases.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: From (I=V/R), current is inversely proportional to resistance when voltage is held constant.
  3. Check signs, units, and direction: The correct answer is The current decreases.

From (I=V/R), current is inversely proportional to resistance when voltage is held constant.

7. QuestionMultiple choice

What is conventional current direction in an external circuit?

Please select an answer first.

Correct answer: C

The correct answer is The direction positive charge would move.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Conventional current is defined as positive charge flow, opposite electron drift in a metal.
  3. Check signs, units, and direction: The correct answer is The direction positive charge would move.

Conventional current is defined as positive charge flow, opposite electron drift in a metal.

8. QuestionMultiple choice

What is the resistance of an ideal conducting wire?

Please select an answer first.

Correct answer: D

The correct answer is Approximately zero.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: An ideal conductor offers no opposition to current, so its resistance is modeled as zero.
  3. Check signs, units, and direction: The correct answer is Approximately zero.

An ideal conductor offers no opposition to current, so its resistance is modeled as zero.

9. QuestionMultiple choice

A resistor carries 2 A2\,\text{A} at 10 V10\,\text{V}. What is its resistance?

Please select an answer first.

Correct answer: A

The correct answer is 5 Ω5\,\Omega.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: Using (R=V/I), the resistance is (10/2=5\,\Omega).
  3. Check signs, units, and direction: The correct answer is 5 Ω5\,\Omega.

Using (R=V/I), the resistance is (10/2=5\,\Omega).

10. QuestionMultiple choice

What is the role of a battery in a simple circuit?

Please select an answer first.

Correct answer: B

The correct answer is It supplies energy by maintaining a potential difference.

  1. Identify the electrical or magnetic system: Determine the charge, current, voltage, field, circuit connection, or force described in the question.
  2. Apply the governing relationship: A battery uses chemical energy to separate charge and provide electrical potential energy to the circuit.
  3. Check signs, units, and direction: The correct answer is It supplies energy by maintaining a potential difference.

A battery uses chemical energy to separate charge and provide electrical potential energy to the circuit.

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