1_Test_Unit-11_Electronics Principles_15-Question_Lv2 _ Eng.

A resistor has the color bands Red, Red, Brown, Gold. What is its resistance value?

• 2.2Ω ± 5%

• 220Ω ± 5%

• 22Ω ± 5%

• 2200Ω ± 5%

• 2200Ω ± 10%

What does the fourth band on a resistor represent?

• Resistance value

• Tolerance

• Power rating

• Multiplier

• Voltage

A resistor has color bands Brown, Black, Orange, Gold. What is its resistance?

• 10Ω ± 5%

• 1kΩ ± 10%

• 100Ω ± 5%

• 10kΩ ± 5%

• 1000Ω ± 5%

If three resistors (5Ω, 10Ω, 15Ω) are connected in series, what is the total resistance?

• 30Ω

• 5Ω

• 10Ω

• 15Ω

• 35Ω

If two resistors (4Ω and 12Ω) are connected in parallel, what is the total resistance?

• 8Ω

• 6Ω

• 3Ω

• 4Ω

• 16Ω

In a parallel circuit with resistors of 10Ω and 20Ω, what happens to the total resistance?

• It is greater than 20Ω

• It is equal to 20Ω

• It is less than 10Ω

• It is the sum of 10Ω and 20Ω

• It equals the average of 10Ω and 20Ω

What is the total resistance of three resistors, 3Ω, 6Ω, and 12Ω, connected in parallel?

• 1.5Ω

• 2Ω

• 4Ω

• 6Ω

• 12Ω

Which of the following is the unit for resistance?

• Volt

• Ampere

• Ohm

• Joule

• Tesla

What instrument is used to measure current in a circuit?

• Voltmeter

• Ammeter

• Ohmmeter

• Thermometer

• Multimeter

If a circuit has a voltage of 24V and a resistance of 8Ω, what is the current?

• 3A

• 12A

• 2A

• 4A

• 8A