Open Book Review 5-7

An electrical component that we use in electronics circuits to limit current though an active component or to reduce voltage in the circuit.

• Capacitor

• Current

• Resistor

• Ancestor

A resistor's first three color bands are brown, black, and red. What is its value?

• 10 ohms

• 10K ohms

• 200 ohms

• 1000 ohms

Which digit on the 1^st band does the color yellow denote on a resistor color band?

• 3

• 2

• 4

• 7

A 47K ohm resistor would have which colors on its first three bands?

• Yellow, Violet, White

• Yellow, Violet, Orange

• Red, White, Blue

• Orange, Yellow, Violet

Which digit does the color orange denote on a resistor color band?

• 2

• 4

• 3

• 5

Which of these colors is NOT used in the resistor value color code?

• White

• Black

• Violet

• Pink

The gold color band refers to__________tolerance.

• + / - 20%

• + / - 10%

• + / - 5%

• zero

What is the tolerance for a Red, Brown, Brown, Silver resistor?

• 1%

• 20%

• 5%

• 10%

In the equation V=I*R I = what ?

• Voltage

• Current

• Resistance

• Power

The resistance of an electric hair dryer is 50Ω. 4 A of current flows through the circuit. What is the voltage?

• 25 V

• 50 V

• 100 V

• 200 V