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