Using Digital Multimeter AET501

Using Digital Multimeter

AET501 Electrical Workshop- Module II​

Multiple Choice

What is the multimeter?

• Mechanical device to read Electrical values

• Electrical device to measure Electrical Values

• a network device

• a power supply

Multiple Choice

Lock around you and locate the multimeter. What are the main measurements done by the Multimeter?

• Current

• Voltage

• Resistance

• all

Resistance measurement

Follow the instructions in the slides.

Multiple Choice

Step 1 : What was done in the picture?

• Turn on the power

• Test the resistor

• Connect the resistor

• Connect the leads

Multiple Choice

Step 2 : What was done in the picture?

• Turn on the power

• turn on the circuit breaker

• Connect the resistor

• Connect the leads

Multiple Choice

Step 3 : What was done in the picture?

• Turn on the multimeter

• turn on the circuit breaker

• Connect the resistor

• Connect the leads

Multiple Choice

Step 4: What was done in the picture?

• Turn on the multimeter

• turn on the circuit breaker

• Connect the resistor

• Set the meter to resistance measurement mode

Multiple Choice

Step 5: What was done in the picture?

• Turn on the multimeter

• connect the measuring leads ( Red is placed in Ω position)

• Connect the resistor

• Set the meter to resistance measurement mode

Multiple Choice

Step 6: What was done in the picture?

• Turn on the multimeter

• connect the measuring leads ( Red is placed in Ω position)

• Connect the resistor

• Set the meter to resistance measurement mode

Multiple Choice

Step 8: What was done in the picture?

• take the reading

  = 10Ω

• take the reading

  = 10KΩ

• Connect the resistor

• Set the meter to resistance measurement mode

Multiple Choice

What are the color codes on the resistor?

• Brown, Black Orange

• Brown, Black, Black

• Brown, onage, Gold

• Brown, Black Orange, Gold

Multiple Choice

What is the unit of the resistance?

• Ohm (Ω)

• Farad (F)

• Henry (H)

• Volt (V)

Poll

What is meant by passive Electrical component?

• Resistors only

• an electrical component that does not generate power

• an electrical component that generates power

• Battery

Multiple Choice

Examples of passive Electrical component

• Resistor, Diode, LED

• Battery

• Transistor

• Switch

Poll

What is meant by active Electrical component?

• Resistors only

• an electrical component that does not generate power

• an electrical component that supplies power

• Battery

Testing the variable resistor

Similar to fixed resistor test

Multiple Choice

Step 6: What was done in the picture?

• take the reading

  = 10Ω

• take the reading

  = 10KΩ

• Connect the resistor (meddle terminal with one side )

• Set the meter to resistance measurement mode

Multiple Choice

Step 7: While testing the variable resistor, what will happen if you rotate the knobe?

• The reading value will change

• the reading will not change

• No idea

• the resistor will heat up