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**This is the Lab Manual for the**

**Mr Circuit Basic Electronics Lab 2**

**LEARN ELECTRONICS AND BECOME A SKILLED TECHNICIAN**

**Educational Tutorial Lab for:**

**S.T.E.M. --- Automotive --- HVAC --- Avionics --- Electronics --- Robotics etc.**

In this lab manual you will work with formulas for Ohm's Law, Watts Law, calculate the equivalent resistance of resistors in series and parallel, use a multimeter to determine the ohms of resistors in series and parallel, calculate resistor wattage, calculate resistor values in LED circuits, calculate and measure current in series and parallel circuits, calculate and measure voltage drops, and more.

You will get practice reading resistor values, current, and voltage on the display of the Digital Multimeter. You will also get more practice using a solderless circuit board to build electronic circuits. (See the whole** S****kill Set **below.).

This lab was created to meet the needs of **S.T.E.M. --- S.T.E.A.M. --- Automotive --- HVAC --- Avionics --- Electronics --- Robotics etc.**

I have trained many technical people and one of their biggest needs was to know how to use and interpret the readings on a multimeter. This knowledge and experience will open up more opportunities at employment and entrepreneurship.

**Here is the list of the lessons in the Mr. Circuit Lab 2**

**Lesson #1** REVIEW ELECTRONIC COMPONENTS such as the cell, the battery, the LED, and the resistor

**Lesson #2** Connect cells in series and draw a schematic diagram of them

**Lesson #3** Work with an LED and its schematic symbol

**Lesson #4** REVIEW RESISTOR COLOR CODE and how to use it

**Lesson #5** Use the Resistor Color Code with +/- 5% resistors

**Lesson #6** Use the Resistor Color Code with +/- 1% resistors

**Lesson #7** Take inventory of all the lab parts

**Lesson #8** PRACTICE DRAWING A SCHEMATIC diagram of a simple circuit

**Lesson #9** Compare schematic symbols to their actual components

**Lesson #10** Connect components of a simple circuit

**Lesson #11** USE A SOLDERLESS CIRCUIT BOARD to build circuits

**Lesson #12** Build a circuit with a resistor, an LED, and a 9-volt battery.

**Lesson #13** Compare brightness of an LED with different resistors in the circuit.

**Lesson #14** USE OHM’S LAW with voltage, current, and resistance.

**Lesson #15** Calculate the equivalent resistance and current through two resistors in series

**Lesson #16** Calculate the equivalent resistance and current through two resistors in parallel

**Lesson #17** Compare voltage drops across 5 different colors of LEDs

**Lesson #18** Calculate the additional resistance needed with various LEDs

**Lesson #19** Light multiple LEDs in parallel and calculate the additional resistances needed

**Lesson #20** MEASURE RESISTANCE with a variety of Ohm values on a digital multimeter

**Lesson #21** MEASURE CURRENT and set up a digital multimeter to measure different amounts of current

**Lesson #22** Build a simple LED circuit and measure the current flowing between resistor and LED

**Lesson #23** Measure current in the same circuit between the resistor and the battery

**Lesson #24** Measure current in the same circuit between the LED and the resistor

**Lesson #25** Build a circuit with a 470 ohm resistor, a red LED, 9-V battery, and measure the current

**Lesson #26** Build a circuit with a 1000 ohm resistor, a red LED, 9-V battery, and measure the current

**Lesson #27** Build a circuit with a 3300 ohm resistor, a red LED, 9-V battery, and measure the current

**Lesson #28** Build a circuit with a 6800 ohm resistor, a red LED, 9-V battery, and measure the current

**Lesson #29** MEASURE VOLTS and voltage drops across components with a digital multimeter

**Lesson #30** Use Watt’s Law to calculate the wattage rating required of a resistor

**Here is the SKILLS SET for the Mr Circuit Lab 2**

• Identify the physical appearance and schematic of a single cell, a multicell battery, an LED, and a resistor.

• Explain how cells connected in series form a multicell device called a battery and draw the schematic..

• Describe the schematic symbol for an LED, show the polarity with Anode and Cathode.

• Describe the purpose of the ‘flat side’ and the ‘short lead’ on the LED in reference to the Cathode..

• Understand that the long leg of the LED is the positive side or the Anode.

• Understand that the beveled edge on an LED is the way to find the Cathode if the LED is in a wired circuit.

• Understand how to use the Resistor Color Code to identify resistor values for both 5% and 1% resistors.

• Take inventory of electronic components and report any discrepancies.

• Draw a simple circuit schematic with symbols and label them including their for polarity.

• Build a basic circuit using the solderless circuit board, the LED, various resistors and a 9-volt battery.

• Match the physical component to their schematic symbol.

• Construct a circuit using a schematic diagram.

• Understand the construction of a solderless circuit board.

• Use Ohm’s Law to calculate voltage, current, and resistance.

• Calculate the equivalent resistance of two resistors in series.

• Calculate the equivalent resistance of two resistors in parallel.

• Identify various voltage drops across different colored LEDs.

• Calculate the additional resistance needed in an LED circuit based on voltage of the power source.

• Connect multiple LEDs in a parallel circuit.

• Measure a variety of values of ohms with a digital multimeter.

• Interpret the reading on the multimeter display in the Ohms function.

• Set up a multimeter to check the current flowing in a circuit.

• Connect the multimeter to a circuit and measure the current.

• Break a series circuit and connect the multimeter to measure the current.

• Explain that the current flowing in a series circuit is the same amount through each component.

• Explain the effect of the amount of current flowing in an LED circuit on the brightness of the LED.

• Set up a multimeter to measure DC voltages.

• Measure DC voltage and voltage drops across components in an active circuit.

• Calculate the minimum wattage needed in a resistor.

**All orders are shipped the business day we receive them.**

**Thank you from G. Art Gibson, author and educator**

**Mr Circuit Technology 805-316-1163**