PCB Components

What is the primary function of a resistor in an electrical circuit?

• To store electrical charge

• To amplify electrical signals

• To resist the flow of electric current

• To emit light when current passes through

What is the main purpose of a capacitor in an electrical circuit?

• To convert AC to DC current

• To store electrical charge and smooth out voltage fluctuations

• To act as a one-way valve for current

• To generate heat for circuit protection

How does a diode function in an electrical circuit?

• It amplifies the current in both directions

• It stores energy and releases it when needed

• It allows current to flow in only one direction

• It converts electrical energy into light

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What is the fundamental role of a transistor in an electronic circuit?

• To provide a constant voltage output

• To act as an electrical switch or amplifier

• To store large amounts of electrical energy

• To prevent current from flowing in any direction

What is a common consequence of incorrectly wiring or over-volting electronic components like transistors and diodes?

• They will function normally but with reduced efficiency.

• They will become permanently damaged or "blown up".

• They will temporarily shut down and then restart.

• They will emit a warning signal.

What are microchips primarily made of?

• A single, large resistor.

• Hundreds of thousands, millions, or even trillions of transistors.

• A combination of diodes and capacitors.

• Simple wires and connectors.

What allows a single microchip to perform various functions, such as controlling lights or sound?

• Its physical size and shape.

• The type of material it is made from.

• The ability to install a program onto it.

• Its connection to a power distribution board.

What does an accelerometer primarily measure?

• Angular velocity.

• Temperature changes.

• Acceleration (G-forces).

• Electrical resistance.