Electrical Components

What is the purpose of a resistor in an electrical circuit?

• To store energy in an electrical circuit

• To amplify the signal in an electrical circuit

• To limit the flow of current in an electrical circuit

• To increase the voltage in an electrical circuit

How are resistors connected in a series circuit?

• Side-by-side

• End-to-end

• Diagonally

• Top-to-bottom

What is the unit of measurement for resistance?

• Joule

• Ohm (Ω)

• Ampere

• Volt

Explain the difference between fixed resistors and variable resistors.

• Fixed resistors have a constant resistance value, whereas variable resistors can change their resistance value.

• Fixed resistors have a higher power rating than variable resistors.

• Fixed resistors are used in AC circuits, while variable resistors are used in DC circuits.

• Fixed resistors are larger in size compared to variable resistors.

What is the function of a capacitor in a circuit?

• Absorbs light in a circuit

• Stores and releases electrical energy in a circuit

• Generates heat in a circuit

• Transmits data in a circuit

What happens to a capacitor in a DC circuit?

• It has no effect on the circuit

• It decreases the voltage of the source

• It charges up to the voltage of the source and blocks the flow of direct current.

• It increases the flow of direct current

What is the role of a diode in a circuit?

• A diode regulates voltage in a circuit

• A diode allows current to flow in one direction only and blocks it in the opposite direction.

• A diode increases resistance in a circuit

• A diode allows current to flow in both directions

Describe the forward bias and reverse bias of a diode.

• Forward bias allows current to flow through the diode, while reverse bias blocks current flow.

• Forward bias blocks current flow, while reverse bias allows current to flow through the diode.

• Forward bias causes the diode to emit light, while reverse bias causes it to absorb light.

• Forward bias increases resistance, while reverse bias decreases resistance.

What are the different types of diodes?

• Rectifier Diode, Zener Diode, LED, Schottky Diode, Tunnel Diode, Varactor Diode, Photodiode, PIN Diode

• Mega Diode

• Nano Diode

• Pico Diode

Explain the concept of transistor amplification.

• Transistor amplification is the process of reducing the strength of a signal using a transistor.

• Transistor amplification involves converting digital signals into analog signals.

• Transistor amplification involves using a transistor to increase the strength of a weak input signal to a higher output signal.

• Transistor amplification is only applicable to mechanical devices, not electronic components.