Electrical Engineering Basics Quiz

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Questions and Answers

What describes an ideal voltage source?

It has a limited amount of energy storage.
It maintains a constant voltage regardless of current. (correct)
It can only supply power for a short duration.
It varies its voltage based on load.

Which statement best differentiates between primary and secondary cells?

Primary cells can be recharged, while secondary cells cannot.
Primary cells are typically used in household devices, while secondary cells are not.
Primary cells produce alternating current, while secondary cells produce direct current.
Secondary cells are rechargeable, while primary cells are disposed after use. (correct)

What is a characteristic of conductors compared to insulators?

Conductors have high resistance.
Conductors do not have free electrons.
Conductors allow electric current to pass through easily. (correct)
Conductors are typically gases or liquids.

Which statement accurately describes the working principle of a servo motor?

<p>It uses a feedback loop to achieve precise control of angular position. (C)</p> Signup and view all the answers

What is one of the main functions of a PN junction diode?

<p>To block current, allowing flow only in one direction. (A)</p> Signup and view all the answers

Flashcards

Ideal Voltage Source

A theoretical component that provides constant voltage regardless of the current drawn from it. Simply put, it's a perfect voltage source.

Difference between Primary & Secondary Cells

Primary cells are single-use batteries that cannot be recharged. They're used once and then discarded. Secondary cells, on the other hand, are rechargeable. They can be used multiple times by converting electrical energy into chemical energy during charging.

Conductor

A material that allows electric current to flow easily through it. It has many free electrons that can carry charge.

What is a Servo Motor?

A device that converts electrical energy into mechanical energy. It utilizes a rotating shaft controlled by an input signal. Used for precise control and positioning, commonly found in robotic systems.

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Lead Acid Battery

A type of battery that uses lead and lead oxide compounds in an electrolyte solution (usually sulfuric acid) to store energy. This type is commonly used in car batteries thanks to its high power output and ability to handle high currents.

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