Daily review: Zener Diode | Ohm’s Law Quiz Practice…

Q: What is the primary function of a Zener diode in a circuit?

To provide a stable reference voltage. — Zener diodes are designed to operate in reverse breakdown, providing a stable voltage.

Q: In a Zener diode circuit, when does the Zener diode begin to conduct heavily?

When the voltage across it equals the Zener voltage and reverse biased. — The Zener diode conducts heavily when it reaches its Zener voltage in reverse bias.

Q: Ohm's Law states the relationship between which three quantities?

Voltage, current, and resistance. — Ohm's Law defines the relationship: V = IR (Voltage = Current x Resistance).

Q: If a resistor has a voltage drop of 12V and a current of 2A flowing through it, what is its resistance?

6 Ohms — Using Ohm's Law (R = V/I), 12V / 2A = 6 Ohms.

Q: What is the breakdown region of a Zener diode characterized by?

A small change in voltage with a large change in current. — In the breakdown region, the voltage across the diode remains relatively constant while the current increases dramatically.

Q: What is the common application of Zener diodes?

Voltage regulation — Zener diodes are widely used for voltage regulation and voltage reference applications.

Q: Which of the following is the formula for calculating power (P) in an electrical circuit, given voltage (V) and current (I)?

P = V * I — Power is calculated as the product of voltage and current (P = VI).

Q: A 100 Ohm resistor is connected to a 12V source. What is the current flowing through the resistor?

0.12 A — Using Ohm's Law (I = V/R), 12V / 100 Ohms = 0.12 A

Q: In a Zener diode circuit used as a voltage regulator, what component usually limits the current?

A series resistor — A series resistor is used to limit the current flowing through the Zener diode and protect it from damage.

Q: If the Zener voltage is 5.1V, and it's used in a voltage regulator circuit, what is its primary function?

To drop the voltage to a constant 5.1V output — The Zener maintains a relatively constant 5.1V output, regulating the voltage.

Question 1 of 10

What is the primary function of a Zener diode in a circuit?

Zener diodes are designed to operate in reverse breakdown, providing a stable voltage.

Question 2 of 10

In a Zener diode circuit, when does the Zener diode begin to conduct heavily?

The Zener diode conducts heavily when it reaches its Zener voltage in reverse bias.

Question 3 of 10

Ohm's Law states the relationship between which three quantities?

Ohm's Law defines the relationship: V = IR (Voltage = Current x Resistance).

Question 4 of 10

If a resistor has a voltage drop of 12V and a current of 2A flowing through it, what is its resistance?

Using Ohm's Law (R = V/I), 12V / 2A = 6 Ohms.

Question 5 of 10

What is the breakdown region of a Zener diode characterized by?

In the breakdown region, the voltage across the diode remains relatively constant while the current increases dramatically.

Question 6 of 10

What is the common application of Zener diodes?

Zener diodes are widely used for voltage regulation and voltage reference applications.

Question 7 of 10

Which of the following is the formula for calculating power (P) in an electrical circuit, given voltage (V) and current (I)?

Power is calculated as the product of voltage and current (P = VI).

Question 8 of 10

A 100 Ohm resistor is connected to a 12V source. What is the current flowing through the resistor?

Using Ohm's Law (I = V/R), 12V / 100 Ohms = 0.12 A

Question 9 of 10

In a Zener diode circuit used as a voltage regulator, what component usually limits the current?

A series resistor is used to limit the current flowing through the Zener diode and protect it from damage.

Question 10 of 10

If the Zener voltage is 5.1V, and it's used in a voltage regulator circuit, what is its primary function?

The Zener maintains a relatively constant 5.1V output, regulating the voltage.

Daily review: Zener Diode | Ohm’s Law Quiz