Basic Electronic Components

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

• To amplify the signal strength

• To increase the speed of data transmission

• To store data in the circuit

• To limit current flow and control voltage levels in the circuit.

How do capacitors store and release electrical energy?

• Capacitors store energy by accumulating charge on two conductive plates separated by an insulating material and release it by discharging the accumulated charge.

• Capacitors store energy by emitting light

• Capacitors store energy by converting it into heat

• Capacitors release energy by absorbing it from the environment

What is the function of a diode in a circuit?

• To amplify the signal

• To regulate voltage

• To allow current flow in one direction while blocking it in the opposite direction.

• To store electrical charge

Explain the difference between an NPN and PNP transistor.

• The main difference between an NPN and PNP transistor is the arrangement of semiconductor layers.

• The difference lies in the color of the casing

• NPN transistors are always larger in size compared to PNP transistors

• NPN transistors are used for audio applications, while PNP transistors are used for digital applications

What role do inductors play in electronic circuits?

• Inductors amplify the signal in electronic circuits

• Inductors convert electrical energy into mechanical energy in electronic circuits

• Inductors regulate the flow of current in electronic circuits

• Inductors store energy in the form of a magnetic field and help smooth out voltage fluctuations and filter out high-frequency noise in electronic circuits.

What are the main components of an integrated circuit?

• Inductors, transformers, and relays

• Microcontrollers, sensors, and actuators

• Transistors, resistors, capacitors, and diodes

• Op-amps, comparators, and voltage regulators

How does a resistor affect the flow of current in a circuit?

• A resistor has no effect on the flow of current in a circuit

• A resistor increases the flow of current by accelerating the movement of electrons

• A resistor completely stops the flow of current in a circuit

• A resistor reduces the flow of current by impeding the flow of electrons and causing a voltage drop.

Describe the behavior of a capacitor in a DC circuit.

• A capacitor in a DC circuit always allows current to flow continuously

• A capacitor in a DC circuit initially allows current to flow to charge up, storing energy in its electric field. Once fully charged, it blocks the flow of direct current, acting as an open circuit. The voltage across the capacitor increases linearly with time as it charges, and when the DC source is removed, it discharges through the circuit, releasing the stored energy.

• The voltage across a capacitor in a DC circuit decreases linearly with time

• A capacitor in a DC circuit acts as a short circuit once fully charged

What is the symbol for a diode in a circuit diagram?

• Triangle with a line

• Square with a line

• Circle with a dot

• Arrow with a line

What is the significance of the base, emitter, and collector in a transistor?

• The base controls the flow of current between the emitter and collector, the emitter is the source of electrons, and the collector collects the majority charge carriers.

• The base collects the majority charge carriers

• The emitter controls the flow of current between the base and collector

• The collector is the source of electrons