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Quizzes > Electronics & Gadgets

Electrical Engineering Quiz: Think Like an Engineer

Quick, free electrical quiz to check circuits, voltage, and current. Instant results.

Editorial: Review CompletedCreated By: Beth HermansaderUpdated Aug 28, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for online electrical engineering quiz on golden yellow background

This electrical engineering quiz helps you practice circuits, voltage, current, and resistance, so you can find weak spots and build speed before a class or test. For more practice, try solving combination circuits, check your control basics with our plc quiz, or sharpen reasoning with a quick problem solving quiz.

Which law defines the linear relationship V = I * R for an ideal resistor?
Ohm's law
Faraday's law
Coulomb's law
Gauss's law
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In a simple series circuit with identical resistors, the current through each resistor is the same.
False
True
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Kirchhoff's Current Law states that the algebraic sum of currents entering a node equals the sum leaving that node.
False
True
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What does a voltmeter measure when connected in parallel with a component?
Charge stored by the component
Power dissipated by the component
Potential difference across the component
Current through the component
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Which quantity is measured in amperes?
Magnetic flux
Electrical resistance
Electric potential
Electric current
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Power in a DC circuit is given by P = V * I.
True
False
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Which network theorem simplifies a linear two-terminal network to a single voltage source in series with a resistance?
Maximum power transfer theorem
Millman's theorem
Thevenin's theorem
Superposition theorem
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RMS value of a sinusoidal voltage is the peak value divided by sqrt(2).
True
False
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Which component exhibits inductive reactance that increases with frequency?
Capacitor
Inductor
Diode
Resistor
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In an ideal op-amp with negative feedback, the input differential voltage is approximately zero in linear operation.
True
False
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For a voltage divider of two series resistors R1 (top) and R2 (bottom), the output across R2 equals Vin * R2 / (R1 + R2).
False
True
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Which color band code represents a 4.7 kΩ resistor with 5% tolerance?
Green, Blue, Red, Gold
Yellow, Purple, Red, Silver
Yellow, Violet, Green, Gold
Yellow, Violet, Red, Gold
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A Wheatstone bridge is balanced when the ratio of one pair of resistors equals the ratio of the other pair.
True
False
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The time constant of an RC circuit equals which expression?
R / C
R * C
C / R
1 / (R * C)
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In a series RLC circuit at resonance, the impedance equals the resistance R.
False
True
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Which phenomenon describes induced EMF proportional to the rate of change of magnetic flux linkage?
Faraday's law of electromagnetic induction
Gauss's law for magnetism
Biot-Savart law
Lenz's law of opposition
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Skin effect causes AC current to concentrate toward the center of a conductor at high frequencies.
False
True
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In phasor representation, multiplication by j corresponds to a 90-degree rotation in the complex plane.
False
True
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Which technique converts differential equations of linear circuits into algebraic equations using complex frequency s?
Phasor method for DC
Fourier series only
Time-domain convolution exclusively
Laplace transform analysis
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Thermal noise voltage of a resistor increases with temperature and bandwidth.
True
False
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0

Study Outcomes

  1. Understand Voltage and Current Flow -

    Readers will grasp how voltage drives current in electrical circuits and how these fundamentals impact overall circuit behavior.

  2. Identify Series and Parallel Circuits -

    Readers will distinguish between series and parallel configurations and predict how each arrangement affects total resistance and current distribution.

  3. Apply Ohm's Law -

    Readers will use the relationship between voltage, current, and resistance to solve basic circuit calculations with confidence.

  4. Analyze Basic Circuit Designs -

    Readers will evaluate simple circuit diagrams to determine component interactions and troubleshoot potential wiring issues.

  5. Recall Electronics Fundamentals Terminology -

    Readers will reinforce key terms such as resistor, capacitor, and conductor, improving their technical vocabulary.

  6. Assess Component Functions -

    Readers will understand the roles of common electrical components and predict their behavior within a circuit.

Cheat Sheet

  1. Ohm's Law Fundamentals -

    Ohm's Law (V = I·R) is the backbone of any electrical engineering basics quiz, linking voltage (V), current (I), and resistance (R). For instance, a 12 V battery driving 2 A through a resistor gives R = 6 Ω. Remember "VIR" (Voltage, Current, Resistance) to keep the formula straight in your electronics fundamentals trivia.

  2. Kirchhoff's Circuit Laws -

    Kirchhoff's Current Law (KCL) states that currents entering a node sum to zero, while Kirchhoff's Voltage Law (KVL) holds that voltages around any closed loop total zero (source: MIT OpenCourseWare). A quick mnemonic is "Junction Currents Join, Loop Voltages Vanish." Mastering these rules is key for your electrical circuits quiz success.

  3. Series and Parallel Resistances -

    In series circuits, resistances add directly (R_total = R₝ + R₂ + …), whereas in parallel 1/R_total = 1/R₝ + 1/R₂ + …. For example, two 4 Ω resistors in parallel yield R_total = 2 Ω. This distinction often appears on any electrical engineering basics quiz online.

  4. Capacitor and Inductor Basics -

    Capacitors store energy as E = ½·C·V² and inductors as E = ½·L·I², with time constants τ = R·C for RC and τ = L/R for RL circuits (source: IEEE tutorials). Knowing how voltage or current responds over time is crucial for an online engineering quiz. Think "RC charges slowly, RL resists changes" to lock in the concept.

  5. AC Signals and Impedance -

    Alternating current analysis uses RMS values (V_rms = V_peak/√2) and treats impedance Z = R + jX, where X is reactance from capacitors or inductors. Phasor diagrams help visualize phase shifts between current and voltage, a staple in electronics fundamentals trivia. Remember "Z = R + jX" to breeze through any electrical engineering quiz online.

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