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INTRO TO ELECTRICAL ENGINEERING - TEST 1 QUESTIONS AND ANSWERS 100% CORRECT!!!

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What is an ideal wire? - ANSWER A wire that conducts electric charge without any loss of potential. It is a good approximation in many applications. What doesn't an ideal wire represent well? - ANSWER Poor representation of long distance transmission lines & microscopic IC's. The reason for this is longer & thinner wires greatly increase the resistance. What is a node? - ANSWER 1 or more ideal wires connected together. What is the first step towards conducting a nodal analysis? - ANSWER Selecting a reference node. This works like "sea level" as other node's voltages are relative to the reference node. Where should the ground node be placed? - ANSWER It's placement is arbitrary but if it is grounded at the back end of a voltage source then the node on the other side of the source equals the voltage of the source. What is significant about the voltage of a node? - ANSWER Every point on a node has the same electric potential (i.e. voltage). What is a branch? - ANSWER A single electrical pathway. Consists of wires and elements. What is significant about the current through a branch? - ANSWER The current through all elements on a branch is the same. What is a loop? - ANSWER Any closed pathway, physical or conceptual. What is a mesh? - ANSWER Closed electrical pathway that doesn't contain other closed pathways. What are the two principle quantities of circuit analysis? - ANSWER Voltage and current. How does an increase in voltage relate to current? - ANSWER Increase in voltage leads to an increase in current What are the fo

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INTRO TO ELECTRICAL ENGINEERING - TEST
1 QUESTIONS AND ANSWERS 100%
CORRECT!!!

, What does a source do? - ANSWER Provides energy - voltage & current sources

What does a load do? - ANSWER Consumes energy for some purpose. Often
represented as a resistor (could be motor, tv, bulb, etc.)

What is an ideal wire? - ANSWER A wire that conducts electric charge without any loss
of potential. It is a good approximation in many applications.

What doesn't an ideal wire represent well? - ANSWER Poor representation of long
distance transmission lines & microscopic IC's. The reason for this is longer & thinner
wires greatly increase the resistance.

What is a node? - ANSWER 1 or more ideal wires connected together.

What is the first step towards conducting a nodal analysis? - ANSWER Selecting a
reference node. This works like "sea level" as other node's voltages are relative to the
reference node.

Where should the ground node be placed? - ANSWER It's placement is arbitrary but if it
is grounded at the back end of a voltage source then the node on the other side of the
source equals the voltage of the source.

What is significant about the voltage of a node? - ANSWER Every point on a node has
the same electric potential (i.e. voltage).

What is a branch? - ANSWER A single electrical pathway. Consists of wires and
elements.

What is significant about the current through a branch? - ANSWER The current through
all elements on a branch is the same.

What is a loop? - ANSWER Any closed pathway, physical or conceptual.

What is a mesh? - ANSWER Closed electrical pathway that doesn't contain other closed
pathways.

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