Basic Electronics

What happens when you connect several LEDs in series?

• The current through each LED is the same.

• The current is divided between the LEDs.

• Each LED has its own independent current.

• The LEDs burn out due to overload.

What is the purpose of a limiting resistor in an LED circuit?

• To increase the intensity of light from the LEDs.

• To reduce the amount of current flowing through the LEDs to prevent damage.

• To increase the lifetime of the LEDs.

• Increase the energy efficiency of the LEDs.

What happens in a series circuit?

• The components are connected one after the other, forming a single path for the current.

• The components are connected in different paths, dividing the current between them.

• There is no current flow.

• Current flows in both directions.

Which type of circuit simulation allows you to test electronic circuits virtually using virtual components?

• Paper simulation.

• Laboratory simulation.

• Tinkercad simulation.

• PowerPoint simulation.

Which of the following units of measurement is used to express electrical resistance?

• Amperes (A).

• Volts (V).

• Ohms (Ω).

• Watts (W).

What happens when you connect several LEDs in parallel?

• The current through each LED is the same.

• The current is divided between the LEDs.

• Each LED has its own independent current.

• The LEDs burn out due to overload.

What is the unit of measurement for electric current?

• Volts (V).

• Ohms (Ω).

• Amperes (A).

• Watts (W).

Which of the following best describes voltage?

• The amount of electric charge in motion.

• The measure of opposition to current flow.

• The difference in electrical potential between two points.

• The measure of the intensity of electron flow.

What happens if the resistance in an electrical circuit is reduced?

• The voltage increases.

• The current decreases.

• It increases the current.

• It has no effect on the circuit.

According to Ohm's Law, what is the relationship between voltage (V), current (I) and resistance (R) in an electrical circuit?

• V = IR

• I = VR

• R = VI

• V = I/R