Understanding Electrical Concepts Quiz

Which of the following equations correctly represents Ohm's Law?

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DOK Level 2: Skill/Concept

If a resistor in a series circuit has a resistance of 5 ohms and the current flowing through it is 2 amperes, what is the voltage across the resistor?

• 5 volts

• 10 volts

• 15 volts

• 20 volts

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DOK Level 2: Skill/Concept

In a parallel circuit, if one branch has a resistance of 4 ohms and another branch has a resistance of 6 ohms, what is the total resistance of the circuit?

• 2.4 ohms

• 10 ohms

• 3.5 ohms

• 5 ohms

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DOK Level 2: Skill/Concept

Which of the following is a characteristic of a series circuit?

• The total resistance is less than the smallest individual resistance.

• The current is the same through all components.

• The voltage is the same across all components.

• Removing one component does not affect the circuit.

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DOK Level 2: Skill/Concept

What is the power consumed by a device that operates at 120 volts and draws a current of 3 amperes?

• 240 watts

• 360 watts

• 400 watts

• 480 watts

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DOK Level 2: Skill/Concept

Which of the following is true about solar panels?

• They convert electrical energy into light energy.

• They convert light energy into electrical energy.

• They store electrical energy for later use.

• They require a constant power supply to operate.

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DOK Level 2: Skill/Concept

What is the main safety concern when working with electrical circuits?

• Ensuring the circuit is complete.

• Preventing electrical shock.

• Maximizing current flow.

• Minimizing resistance.

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DOK Level 2: Skill/Concept

If a solar panel generates 200 watts of power and operates for 5 hours, how much energy does it produce?

• 500 watt-hours

• 800 watt-hours

• 1000 watt-hours

• 1200 watt-hours

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DOK Level 2: Skill/Concept

In a parallel circuit, if the voltage across one branch is 12 volts, what is the voltage across the other branches?

• 6 volts

• 12 volts

• 24 volts

• 0 volts

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DOK Level 2: Skill/Concept

Which of the following practices is essential for electrical safety?

• Using water to cool down overheated circuits.

• Wearing rubber-soled shoes when working with electricity.

• Using metal tools to adjust live circuits.

• Keeping circuits open to prevent current flow.

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DOK Level 2: Skill/Concept