Electrical Components Testing

What is the purpose of testing resistors?

• To measure current flow

• To regulate power output

• To ensure resistors are within specified tolerance range and verify resistance value

• To determine voltage levels

How can you test a resistor using a multimeter?

• Shake the resistor to listen for any internal components

• Connect the probes of the multimeter to each end of the resistor and read the resistance value displayed on the multimeter.

• Submerge the resistor in water and observe the reaction

• Connect the probes of the multimeter to a power source

Explain the color code for a 100 ohm resistor.

• Green, Yellow, Green, Silver

• Red, Black, Red, Silver

• Brown, Black, Brown, Gold

• Brown, Blue, Brown, Gold

What does it mean if a resistor reads infinite resistance?

• The resistor is functioning properly

• There is an open circuit

• The resistor is overheating

• The resistor is short-circuited

Why is it important to disconnect the resistor from the circuit before testing?

• To enhance the conductivity of the circuit

• To increase the resistance in the circuit

• To prevent interference or inaccurate readings.

• To improve the accuracy of the resistor

Describe the process of testing a resistor for continuity.

• Tap the resistor with a hammer to test for continuity

• Use a compass to check for continuity in the resistor

• Set multimeter to continuity test mode, place probes on resistor ends, listen for beep or check for low resistance reading

• Set multimeter to voltage test mode, place probes on resistor ends, listen for beep or check for high resistance reading

What are the common methods to test resistors for accuracy?

• Using a voltmeter

• Measuring the weight of the resistor

• Checking the resistor's temperature

• Using a multimeter, comparing color bands, and using a decade box

What safety precautions should be taken when testing resistors?

• Test resistors with power on

• Skip wearing PPE

• Turn off power, discharge energy, wear PPE, follow testing procedures

• Disregard testing procedures

What are the consequences of using a faulty resistor in a circuit?

• Short circuiting, overloading, underperformance

• Enhanced durability, better signal transmission, lower cost

• Inaccurate readings, overheating, malfunctions, damage

• Increased efficiency, improved accuracy, reduced power consumption

Explain how temperature affects the resistance of a resistor.

• Temperature has no effect on resistance

• Temperature increases resistance by reducing the number of free electrons

• Temperature affects resistance by increasing the vibrational motion of atoms, causing more collisions with free electrons.

• Temperature decreases resistance by slowing down electron flow