Electrical Engineering MCQs

Page No. 12

The current flowing through an unloaded voltage divider is called the____________?


ableeder current


bload current


cresistor current


dvoltage current


View Answer bleeder current

With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current of R2 if R1 is series connected with parallel circuit R2 and R3?


a200 mA


b400 mA


c600 mA


d 800 mA


View Answer 400 mA

If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?


acannot tell


b remains the same


c increases


ddecreases


View Answer decreases

A Wheatstone bridge can be used to determine an unknown_____________?


a current


b voltage


cresistance


dpower


View Answer resistance

A device able to supply electrical energy is a __________?


anonconductor


bbattery


cconductor


d microwave


View Answer battery

A 6 V battery output is divided down to obtain two output voltages. Three 2.2 kΩ resistors are used to provide the two taps. The two output voltages are___________?


a2 V, 4 V


b2 V, 2 V


c2 V, 6 V


d 4 V, 6 V


View Answer 2 V, 4 V

The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________?


a 20,000 Ω


b 100,000 Ω


c 200,000 Ω


d1,000,000 Ω


View Answer 100,000 Ω

A certain voltage divider consists of three 1 kΩ resistors in series. Which of the following load resistors will have the least effect on the output voltage?


a1 MΩ


b100 kΩ


c1 kΩ


d330 Ω


View Answer 1 MΩ

Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is____________?


a138 Ω


b1,389 Ω


c5,700 Ω


d880 Ω


View Answer 1,389 Ω

A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage?


a1 MΩ


b24 kΩ


c18 kΩ


d12 kΩ


View Answer 12 kΩ

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