Electronics Ultimate MCQ: Trivia Quiz!

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Quizzes Created: 1 | Total Attempts: 417
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  • 1/11 Questions

    What is the color on a Resistor is for?

    • To make the circuitboard look pretty.
    • To make the circuits cooler.
    • To know what size the Resistor is.
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About This Quiz


How much do you know about electronics? Would you be able to score 100% in the quiz? According to this quiz, you should know the formula for P, what a diode is, what type of battery are capacitors, the color of a resistor for, what is a transistor, and the three things you must do for a circuit. This valuable quiz gives you information about electronics. Good luck to you.

Electronics Ultimate MCQ: Trivia Quiz! - Quiz

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  • 2. 

    What are the three legs on a Transistor?

    • Base, Diode, Collector

    • Pin, Base, Collector

    • Voltage in, Voltage out, Ground

    • Base , Emitter, Colletor

    Correct Answer
    A. Base , Emitter, Colletor
    Explanation
    The correct answer is Base, Emitter, Collector. In a transistor, the base is responsible for controlling the flow of current between the emitter and the collector. The emitter is the source of electrons, while the collector collects the electrons and allows the current to flow through it.

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  • 3. 

    An OR gate with two inputs  1   1  What is the Output?

    • 0

    • 10

    • 00

    • 1

    Correct Answer
    A. 1
    Explanation
    An OR gate with two inputs will output 1 if at least one of the inputs is 1. In this case, both inputs are 1, so the output will be 1.

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  • 4. 

    Diodes are used for what?

    • Reversing the voltage.

    • Slowing down the amp.

    • Let the voltage only go one way.

    Correct Answer
    A. Let the voltage only go one way.
    Explanation
    Diodes are electronic components that allow the flow of current in only one direction. They act as a one-way valve for electrical current, allowing it to pass through in one direction while blocking it in the opposite direction. This property makes diodes useful in a variety of applications, such as rectification in power supplies, signal modulation, and protection against reverse current flow.

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  • 5. 

    What is the voltage of a Diode?

    • 7

    • 1

    • 2

    • .7

    Correct Answer
    A. .7
    Explanation
    The voltage of a diode is typically around .7 volts. This is because a diode is a semiconductor device that allows current to flow in only one direction. When forward biased, the diode has a voltage drop of approximately .7 volts across it. This voltage drop is necessary to overcome the barrier potential and allow current to flow through the diode.

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  • 6. 

    If an AND 2 input gates had an input of  1   0,   then the output would be?

    • 0

    • 10

    • 1

    Correct Answer
    A. 0
    Explanation
    If an AND gate has two inputs, it will only output a 1 if both inputs are 1. In this case, one of the inputs is 0, so the output will be 0.

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  • 7. 

    What Binary number is 01110?

    • 10

    • 111

    • 7

    • 14

    Correct Answer
    A. 14
    Explanation
    The binary number 01110 is equivalent to the decimal number 14. In binary, each digit represents a power of 2, starting from the rightmost digit as 2^0. Therefore, the value of the binary number 01110 can be calculated as (0 * 2^4) + (1 * 2^3) + (1 * 2^2) + (1 * 2^1) + (0 * 2^0) = 14.

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  • 8. 

    The formula of P = ?

    • P/R

    • E/R

    • I x E

    • SQUARE ROOT OF E/R

    Correct Answer
    A. I x E
    Explanation
    The formula for P is obtained by multiplying the variables I and E.

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  • 9. 

    Three things do you need for a circuit:

    • Reading skills, Math skills, Computer skills

    • Solder, Electricity, Bread board

    • Power supply, Switching Device, Load type

    • None of the above

    Correct Answer
    A. Power supply, Switching Device, Load type
    Explanation
    The correct answer is "Power supply, Switching Device, Load type." In order to create a circuit, you need a power supply to provide the electrical energy, a switching device to control the flow of electricity, and a load type to consume the electrical energy. These three components work together to create a functioning circuit. The other options mentioned, such as reading skills, math skills, solder, electricity, bread board, are not necessary components for a circuit.

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  • 10. 

    Capacitors are a type of battery?

    • Yes it can be used as a Battery

    • No it only holds a small charge

    • It is nothing like a Battery

    Correct Answer
    A. No it only holds a small charge
    Explanation
    Capacitors are not a type of battery. While both capacitors and batteries store electrical energy, they do so in different ways. Batteries use chemical reactions to generate and store electrical energy, while capacitors store energy in an electric field between two conductive plates. Capacitors can only hold a small charge compared to batteries, and they discharge their energy rapidly when connected to a circuit. Therefore, capacitors are not suitable for long-term energy storage like batteries.

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  • 11. 

    In what way can you demagnetize a magnet?

    • Soaking it in water for hours

    • Heating it

    • Hanging it outside for three days

    • Beating it against a hard object

    • None of the above

    Correct Answer(s)
    A. Heating it
    A. Beating it against a hard object
    Explanation
    Heating a magnet can demagnetize it by disrupting the alignment of its magnetic domains. When a magnet is heated to a certain temperature called the Curie temperature, its magnetic properties are lost. Beating a magnet against a hard object can also cause the magnetic domains to become misaligned, resulting in demagnetization. Soaking a magnet in water or hanging it outside for three days will not demagnetize it. Therefore, the correct answer is heating it and beating it against a hard object.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 23, 2009
    Quiz Created by
    Thor05
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