Module 11 Homework

What is the value and tolerance of a 4 band resister colored from left to right, brown, black, orange and gold?

10 KOhms, 5%

A 10,000 Ohms resistor has a tolerance of 5 %. What are the minimum and maximum values of this resistor?

10,500 Ohms - 9,500 Ohms

What is the value and tolerance of a 4 band resister colored from left to right, brown, red, black and red?

12 Ohms, 2%

A resistor has color bands of orange, blue, yellow, and gold. What are the resistance and tolerance of this resistor?

360,000 Ohms at + 5 %

What is the value and tolerance of a 4 band resister colored from left to right, blue, gray, red and gold?

6800 Ohms, 5%

What is a potentiometer?

A variable resistor connected to operate as a voltage divider.

What is the advantage of a wire-wound resistor?

Higher power rating to withstand more heat.

A 1-W, 350 Ohms resistor is connected to 24 V. Is this resistor operating within its power rating?

No

How should tubular wire-wound resistors be mounted and why?

Vertically to permit air to rise through the center.

A 0.5 W, 2000 Ohms resistor has a current flow of 0.01 A through it. Is this resistor operating within its power rating?

Yes

Is 51,000 Ohms a standard value for a 5% resistor?

Yes

Which of the following are fixed resistors?

metal glaze, metal film, and composite carbon

A 4 band resister has a value of 75 ohms with a tolerance of 2%. What are the colors of the resistor's bands from left to right?

violet, green, black, red

What is the advantage of a metal film resistor over a carbon resistor?

They do not change their value with age.

A 4 band resister has a value of 0.15 ohms with a tolerance of 10%. What are the colors of the resistor's bands from left to right?

brown, green, silver, silver

A 4 band resister has a value of 33 Kohms with a tolerance of 5%. What are the colors of the resistor's bands from left to right?

orange, orange, orange, gold

A 4 band resister has a value of 240 ohms with a tolerance of 10%. What are the colors of the resistor's bands from left to right?

red, yellow, brown, silver