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 Total number of questions : 20.
 Time alloted : 30 minutes.
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1.  A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver? 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Ohm's Law Discuss about this problem : Discuss in Forum 
2.  What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source? 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Ohm's Law Discuss about this problem : Discuss in Forum 
3.  The watt is the unit of power. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Energy and Power Discuss about this problem : Discuss in Forum 
4.  The number of current paths equals the number of resistors in parallel. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Parallel Circuits Discuss about this problem : Discuss in Forum 
5.  Total power in a parallel circuit is found by adding up the power of all the individual resistors. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Parallel Circuits Discuss about this problem : Discuss in Forum 
6.  What is the voltage drop across R_{2}?


Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Branch, Loop and Node Analyses Discuss about this problem : Discuss in Forum 
7.  The first row of a certain determinant has the numbers 3 and 5. The second row has the numbers 7 and 2. The value of this determinant is 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Branch, Loop and Node Analyses Discuss about this problem : Discuss in Forum 
8.  When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Magnetism and Electromagnetism Discuss about this problem : Discuss in Forum 
9.  The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Magnetism and Electromagnetism Discuss about this problem : Discuss in Forum 
10.  An electromagnetic field exists only when there is 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Magnetism and Electromagnetism Discuss about this problem : Discuss in Forum 
11.  The average value of a 12 V peak sine wave over one complete cycle is 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Alternating Current and Voltage Discuss about this problem : Discuss in Forum 
12.  Amplitude is the maximum value of a voltage or current. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Alternating Current and Voltage Discuss about this problem : Discuss in Forum 
13.  When the frequency is decreased, the impedance of a parallel RL circuit 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : RL Circuits Discuss about this problem : Discuss in Forum 
14.  Referring to the given figure, determine Z_{TH} as seen by R_{L} if R_{1} is changed to 3.3 k.


Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Circuit Theorems in AC Analysis Discuss about this problem : Discuss in Forum 
15.  Determine V_{TH} if R_{1} is changed to 3.3 k.


Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Circuit Theorems in AC Analysis Discuss about this problem : Discuss in Forum 
16.  One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Circuit Theorems in AC Analysis Discuss about this problem : Discuss in Forum 
17.  In an RC differentiator, the capacitor 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Time Response of Reactive Circuits Discuss about this problem : Discuss in Forum 
18.  If in a Yconnected ac generator, each phase voltage has a magnitude of 90 V_{RMS}, what is the magnitude of each line voltage? 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : ThreePhase Systems in Power Applications Discuss about this problem : Discuss in Forum 
19.  A simple threephase generator consists of three conductive loops separated by 120°. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : ThreePhase Systems in Power Applications Discuss about this problem : Discuss in Forum 
20.  The stator is the rotating assembly in a generator or motor. 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: The two main parts of a generator or motor can be described in either mechanical or electrical terms: Mechanical: Rotor: The rotating part of an electrical machine Stator: The stationary part of an electrical machine Electrical: Armature: The powerproducing component of an electrical machine. In a generator, alternator, or dynamo the armature windings generate the electric current. The armature can be on either the rotor or the stator. Field: The magnetic field component of an electrical machine. The magnetic field of the dynamo or alternator can be provided by either electromagnets or permanent magnets mounted on either the rotor or the stator. Learn more problems on : ThreePhase Systems in Power Applications Discuss about this problem : Discuss in Forum 