ECE 3254: Industrial Electronics
Sample Midterm 1: Homework 3,
Form: A
Name:
Student Number:
TA:
Date:
Optional Problems. The following text problems do not need to be turned in, but they are
typical of the kind of questions likely to appear on the exam. You may find it useful to review
these problems as you study.
6.61, 6.43, 6.89, 6.90, and 6.93
True/False. Mark the following statements as either true (T) or false (F). If the answer is
false, either provide a counterexample, correct the statement to make it true, or provide a concise
explanation to explain why the statement is incorrect. Answer these questions on this paper.
For two phasors V1and V2, the magnitude of V1+V2is equal to the sum of the magni-
tudes of V1and V2.
Charge is the time rate change of current.
KCL, KVL, and Ohm’s law cannot be used to correctly solve AC circuits.
At any node in a circuit, the sum of the currents entering the node is precisely equal to
the sum of the currents leaving the node.
A series RC circuit will behave the same way for an input sinusiod of any frequency.
If a device has an applied voltage of 10 V and a current of 2 A leaving the positive termi-
nal, the device is consuming 60 W.
The graph of a circuit’s frequency response (a Bode plot) cannot be used to calculate its
response to sinusoidal inputs.
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