ECT122 Wk1 Assignment
Chapter 1 Principles of Electricity
Practice Problems
1. One coulomb of charge passes a point every 20 seconds. Calculate the value of the current through the point.
I = Q/t = 1 coulomb/20 seconds = 0.05C/s = 0.05 A
2. A total charge of 2.5x10^-3 C passes a point every 40 seconds. Calculate the value of the current through the point.
I=Q/t = 2.5C/40s = 0.0625C/s = 0.0625 A
4. A total charge of 50x10^-3 C passes a point every 2.5 seconds. Calculate the value of the current through the point.
I=Q/t= 50C/2.5s = 20 C/s = 20 A
6. Calculate the conductance of a 1.5 MΩ resistor. 7. Calculate the conductance of a 510 kΩ resistor. 23. Convert each of the following to engineering notation. a. 1.11 x 10^8 Hz = 111 x 10^6 = 111 MHz b. 0.22 x 10^-6 F = 0.22 F 24. Convert each of the following to engineering notation. a. 0.00128 A = 1.28 x 10^-3 = 1.28 mA b. 0.000047 H = 0.047 x 10^-3 = 0.047 mH
Chapter 2 Components and Circuit Measurements
Practice Problems
3. Determine the guaranteed range of values for a 360 kΩ resistor with a 5% tolerance.
360*.05 = 18 360+/-18 360+18= 378 360-18=342
Guaranteed range value is 378kΩ - 342kΩ
5. For each of the color codes listed, determine the rated value of the component. Band 1 - Band 2 - Band 3 - value
A. Brown Blue Brown = 16 x 10^1= 160
C. Orange White Yellow = 39 x 10^4= 390000 = 390 k
E. Yellow Violet Green = 47 x 10^5 = 4700000 = 4.7 M
7.Determine the colors of the first three bands for each of the following resistor values.
A. 33 kΩ = 33000 -Orange, orange, and orange C. 910 kΩ = 910000 -white, brown, and yellow F. 10 MΩ = 10000000 -brown, black, and blue H. 0.24 Ω = 240 -red, yellow, and silver
10. For each of the color codes listed, determine the rated component value and the guaranteed range of
Practice Problems
1. One coulomb of charge passes a point every 20 seconds. Calculate the value of the current through the point.
I = Q/t = 1 coulomb/20 seconds = 0.05C/s = 0.05 A
2. A total charge of 2.5x10^-3 C passes a point every 40 seconds. Calculate the value of the current through the point.
I=Q/t = 2.5C/40s = 0.0625C/s = 0.0625 A
4. A total charge of 50x10^-3 C passes a point every 2.5 seconds. Calculate the value of the current through the point.
I=Q/t= 50C/2.5s = 20 C/s = 20 A
6. Calculate the conductance of a 1.5 MΩ resistor. 7. Calculate the conductance of a 510 kΩ resistor. 23. Convert each of the following to engineering notation. a. 1.11 x 10^8 Hz = 111 x 10^6 = 111 MHz b. 0.22 x 10^-6 F = 0.22 F 24. Convert each of the following to engineering notation. a. 0.00128 A = 1.28 x 10^-3 = 1.28 mA b. 0.000047 H = 0.047 x 10^-3 = 0.047 mH
Chapter 2 Components and Circuit Measurements
Practice Problems
3. Determine the guaranteed range of values for a 360 kΩ resistor with a 5% tolerance.
360*.05 = 18 360+/-18 360+18= 378 360-18=342
Guaranteed range value is 378kΩ - 342kΩ
5. For each of the color codes listed, determine the rated value of the component. Band 1 - Band 2 - Band 3 - value
A. Brown Blue Brown = 16 x 10^1= 160
C. Orange White Yellow = 39 x 10^4= 390000 = 390 k
E. Yellow Violet Green = 47 x 10^5 = 4700000 = 4.7 M
7.Determine the colors of the first three bands for each of the following resistor values.
A. 33 kΩ = 33000 -Orange, orange, and orange C. 910 kΩ = 910000 -white, brown, and yellow F. 10 MΩ = 10000000 -brown, black, and blue H. 0.24 Ω = 240 -red, yellow, and silver
10. For each of the color codes listed, determine the rated component value and the guaranteed range of