EMGT 3113 Final Exam Questions With
Correct Answers
One of the fundamentals of static electricity is that the force between
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two charges of like charge - CORRECT ANSWER✔✔-is repulsive
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How much current is drawn by a 1500 W appliance operating at 120V -
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CORRECT ANSWER✔✔-12 |
What quantity is the same for three resistors in a parallel circuit? -
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CORRECT ANSWER✔✔-voltage across them
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A 100 ohm and a 150 ohm resistor are connected in parallel to a 120 V
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source. What is the current through the 150 ohm resistor? - CORRECT
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ANSWER✔✔-0.8 = 120V/150 ohm | | |
Cosmic rays impinging upon the earth will generally? - CORRECT
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ANSWER✔✔-not be affected if they are electrically neutral | | | | | | |
Pumped storage generally will enable a utility to? - CORRECT
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ANSWER✔✔-store energy until the demand is high enough | | | | | | |
, Alternating current has an advantage over direct current because? -
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CORRECT ANSWER✔✔-one can step up the voltage that one can use
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The largest share of renewable energy in the US comes from - CORRECT
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ANSWER✔✔-hyrdro
Superconductors have a primary advantage in that they will? - CORRECT | | | | | | | | | | |
ANSWER✔✔-reduce heating losses in transmission lines | | | | |
Revenue from a 10 MWe electrical power plant over 24 hours when
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electricity is sold at 7cents kwh will be about? - CORRECT ANSWER✔✔-
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$17,000
The fuel that provides most of the electricity in the U.S. is? - CORRECT
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ANSWER✔✔-coal
Static charge can build up quickly on an object - CORRECT ANSWER✔✔-
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during days when the conditions are not humid
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Electricity is transmitted from power plants at - CORRECT ANSWER✔✔-
| | | | | | | | |
high voltages|
If a 20 and a 40 ohm resistor are wired in parallel to a 20V source, what
| | | | | | | | | | | | | | | | |
will be the current in the 40 ohm resistor? - CORRECT ANSWER✔✔-0.5
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Correct Answers
One of the fundamentals of static electricity is that the force between
| | | | | | | | | | | |
two charges of like charge - CORRECT ANSWER✔✔-is repulsive
| | | | | | | |
How much current is drawn by a 1500 W appliance operating at 120V -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-12 |
What quantity is the same for three resistors in a parallel circuit? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-voltage across them
| | |
A 100 ohm and a 150 ohm resistor are connected in parallel to a 120 V
| | | | | | | | | | | | | | | |
source. What is the current through the 150 ohm resistor? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-0.8 = 120V/150 ohm | | |
Cosmic rays impinging upon the earth will generally? - CORRECT
| | | | | | | | | |
ANSWER✔✔-not be affected if they are electrically neutral | | | | | | |
Pumped storage generally will enable a utility to? - CORRECT
| | | | | | | | | |
ANSWER✔✔-store energy until the demand is high enough | | | | | | |
, Alternating current has an advantage over direct current because? -
| | | | | | | | | |
CORRECT ANSWER✔✔-one can step up the voltage that one can use
| | | | | | | | | |
The largest share of renewable energy in the US comes from - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-hyrdro
Superconductors have a primary advantage in that they will? - CORRECT | | | | | | | | | | |
ANSWER✔✔-reduce heating losses in transmission lines | | | | |
Revenue from a 10 MWe electrical power plant over 24 hours when
| | | | | | | | | | | |
electricity is sold at 7cents kwh will be about? - CORRECT ANSWER✔✔-
| | | | | | | | | | |
$17,000
The fuel that provides most of the electricity in the U.S. is? - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-coal
Static charge can build up quickly on an object - CORRECT ANSWER✔✔-
| | | | | | | | | | |
during days when the conditions are not humid
| | | | | | |
Electricity is transmitted from power plants at - CORRECT ANSWER✔✔-
| | | | | | | | |
high voltages|
If a 20 and a 40 ohm resistor are wired in parallel to a 20V source, what
| | | | | | | | | | | | | | | | |
will be the current in the 40 ohm resistor? - CORRECT ANSWER✔✔-0.5
| | | | | | | | | | |
