Tech 101 - Tutorial Exercise 11
Review for Test 2
Topics
Test covers weeks 8 to 11 plus labs 6 to 10. Specific topics include the following but you
must still know Ohms Law, KVL, KCL etc.
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Resistor color code
Series-Parallel circuits - calculate total resistance and all voltages and currents,
predict values of V and I for various open or short faults in resistors
Voltage Divider, Current Divider - perform calculations on circuits
Meter Loading – meter resistance of various voltmeters (Analog and digital),
calculate the effect of a voltmeter on a resistive circuit.
Variable resistors – basic principle of how they work, schematic and physical
diagrams, applications as potentiometers and rheostat circuits with calculations
Ideal and Real voltage and current sources – definitions, circuit models, source
resistance, calculation of source resistance
Superposition – calculate V and I in circuits with 2 or more voltage and/or current
sources
Thevenin's theorem – draw and calculate values for a Thevenin Equivalent cct
Superposition Theorem
Go to the course web page
http://munro.humber.ca/~lloyd/tech101/index.html
Go to the Course Web Links web page and scroll down to the links
Superposition Theorem - Learning Object - review the Superposition Theorem and try the sample
problems below.
Problems
1. Find the total voltage drop across the 50 Ω resistor. (-6.67 V)
2. Find the total voltage across the 4.7 kΩ resistor. (-11.5 V)
3. Reverse the direction of the current source and find the total voltage across the 4.7 k Ω resistor.
(14.0 V)
4. Find the total voltage drop across the 300 Ω resistor. (-4.00 V)
Thevenin’s Theorem
Go to the course web page
http://munro.humber.ca/~lloyd/tech101/index.html
Go to the Course Web Links web page and scroll down to the links
Thevenin’s Theorem - Learning Object - review Thevenin’s Theorem and try the sample problems below
Thevenin Voltage Practice Problems
Thevenin Resistance Practice Problems