Understanding Diodes in Circuits

Understanding Diodes in Circuits

Assessment

Interactive Video

Physics, Science

9th - 12th Grade

Hard

Created by

Amelia Wright

FREE Resource

The video tutorial explains how to use a diode, specifically an LED, in a simple circuit. It covers setting up the circuit with a resistor and battery, and analyzing it using current laws and IV characteristics. The tutorial demonstrates solving the circuit using a graphical method by plotting the load line and finding the intersection point, which provides the solution for the diode's voltage and current. The video concludes with interpreting the results of the graphical solution.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of diode is used in the circuit discussed in the video?

Zener Diode

LED Diode

Photodiode

Schottky Diode

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the resistance value of the resistor used in the circuit?

220 ohms

470 ohms

330 ohms

560 ohms

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the voltage of the battery used in the circuit?

3 volts

1.5 volts

5 volts

9 volts

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At approximately what voltage does the current rise rapidly in the diode's IV curve?

5 volts

6 volts

8 volts

7 volts

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equation used to describe the current through the diode?

I = V/R

I = Is * e^(QV/KT) - 1

I = V^2/R

I = P/V

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the slope of the load line for the resistor in the circuit?

-1/220

-1/330

-1/470

-1/560

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the I intercept of the load line for the resistor?

5 milliamps

7 milliamps

9 milliamps

11 milliamps

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