Circuit Short Test Quiz

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| By Jessica Vinza

Jessica Vinza

Community Contributor

Quizzes Created: 1 | Total Attempts: 11,687

Questions: 10 | Attempts: 11,840 | Updated: Mar 13, 2024

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Are you well aware of electronic circuits? Can you pass this circuit short test quiz? An electronic circuit has individual electronic components, such as resistors, transistors, capacitors, inductors, and diodes. Conductive wires or traces connect these because of which electric current can flow. After this brief description of the circuit, it's time for you to answer some questions about it and prove that you really know about electronic circuits. All the best to you, and have fun!

Questions and Answers

1.

What is this symbol?
- A.
  
  Potentiometer
- B.
  
  Conductor
- C.
  
  Resistor
- D.
  
  Bulb
Correct Answer
C. Resistor

Explanation
This symbol represents a resistor. A resistor is an electronic component that is used to restrict the flow of electric current in a circuit. It is typically represented by a zigzag line. Resistor values are measured in ohms and they are used to control the amount of current flowing through a circuit, limit voltage levels, and protect other components from excessive current.

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2.

Cell
- A.
  
  Is the power source of the circuit
- B.
  
  Is the energy of the circuit
- C.
  
  Both A & B
- D.
  
  None of these
Correct Answer
A. Is the power source of the circuit

Explanation
The correct answer is "is the power source of the circuit." In a circuit, a cell or battery provides the electrical energy needed for the circuit to function. It acts as a power source by converting chemical energy into electrical energy, which can then be used to power various components in the circuit. Therefore, the cell is essential for supplying the power needed to operate the circuit.

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3.

Load is also termed as the
- A.
  
  Cell
- B.
  
  Powerhouse
- C.
  
  Generator
- D.
  
  Resistor
Correct Answer
D. Resistor

Explanation
Load is also termed as a resistor because a load in an electrical circuit refers to any device or component that consumes power from the source. A resistor is a passive component that opposes the flow of electric current and dissipates energy in the form of heat. In other words, a resistor acts as a load by converting electrical energy into heat energy. Therefore, the term "resistor" accurately describes a load in an electrical circuit.

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4.

Conductors are made of
- A.
  
  Golden wires
- B.
  
  Iron wires
- C.
  
  Copper wires
- D.
  
  None of these
Correct Answer
C. Copper wires

Explanation
Conductors are materials that allow the flow of electric current. Among the options given, copper wires are the most commonly used conductors due to their high electrical conductivity. Copper is an excellent conductor of electricity because it has a low resistance, allowing the current to flow easily. Golden wires are not commonly used as conductors due to their high cost and lower conductivity compared to copper. Iron wires, on the other hand, have higher resistance and are not as efficient in conducting electricity. Therefore, the correct answer is copper wires.

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5.

In a parallel circuit, which of the following statements is correct?
- A.
  
  The total resistance is the sum of individual resistances.
- B.
  
  The current is the same through each component.
Correct Answer
B. The current is the same through each component.

Explanation
In a parallel circuit, the current is the same through each component, but the voltage across each component may vary. Removing one component does not break the entire circuit, as it remains functional.

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6.

Switch is
- A.
  
  A connection in the circuit
- B.
  
  A small gap in the circuit
- C.
  
  A powerhouse
- D.
  
  None of these
Correct Answer
B. A small gap in the circuit

Explanation
A switch is a small gap in the circuit that can be opened or closed to control the flow of electricity. When the switch is closed, it completes the circuit and allows the electricity to flow through. When the switch is opened, it creates a gap in the circuit, interrupting the flow of electricity. This allows the switch to control the flow of electricity and turn devices on or off. A switch is not a connection in the circuit or a powerhouse, but rather a component that controls the circuit's connectivity.

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7.

Which law is used to find the performance of the electric circuit?
- A.
  
  Faraday's law
- B.
  
  Newton's law
- C.
  
  Robert's law
- D.
  
  Ohm's law
Correct Answer
D. Ohm's law

Explanation
Ohm's law is used to find the performance of an electric circuit. It states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor. This law helps in determining the relationship between voltage, current, and resistance in a circuit, allowing for calculations of power, current flow, and voltage drop. It is a fundamental principle in electrical engineering and is widely used to analyze and design circuits.

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8.

What is the symbol for battery?
- A.
- B.
- C.
- D.
Correct Answer
C.

Explanation
The symbol for a battery is a rectangle with a long line on the top and a short line on the bottom. The long line represents the positive terminal, while the short line represents the negative terminal. This symbol is commonly used in electrical diagrams and schematics to indicate the presence of a battery and its polarity.

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9.

Which of the following scenarios is most likely to result in a circuit short?
- A.
  
  Increasing the resistance of a resistor in the circuit.
- B.
  
  Disconnecting a component from the circuit.
- C.
  
  Accidentally touching two bare wires together.
- D.
  
  Adding a capacitor to the circuit.
Correct Answer
C. Accidentally touching two bare wires together.

Explanation
A circuit short occurs when two conductive materials come into contact with each other, bypassing the intended circuit path. Option C, touching two bare wires together, represents a direct path with low resistance, causing excessive current flow and potentially damaging the circuit. The other options, such as increasing resistance (Option A), disconnecting a component (Option B), or adding a capacitor (Option D), do not directly create a short circuit but may affect circuit behavior differently.

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10.

What kind of circuit is this?
- A.
  
  Series Circuit
- B.
  
  Parallel Circuit
- C.
  
  Complex Circuit
- D.
  
  None of these
Correct Answer
A. Series Circuit

Explanation
This circuit is a series circuit because all the components are connected in a single loop, with the current flowing through each component in succession. In a series circuit, the total resistance is equal to the sum of the individual resistances, and the current remains the same throughout the circuit.

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