⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs421
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
D4 V, 6 V
422
The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________?
A20,000 Ω
B100,000 Ω
C200,000 Ω
D1,000,000 Ω
423
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
424
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
425
The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?
AMagnetic flux density
BTorque
CMutual induction
DMotional emf
426
The emf induced in a coil by a changing magnetic flux may have unit as______________?
Ams-1A
Bms-2A-1
Ckgms2A-1
Dkgm2s-1A-1
427
Power loss in actual transformer is due to_________________?
ASmall output
BEddy currents and magnetic hysterias
CSoft iron core
DBack emf
428
A.C and D.C have the same______________?
Aeffect in charging a capacitor
Beffect in charging a battery
Ceffect while passing through an inductance
Dheating effect through a resistance
429
Non inductive resistances are used in decreasing______________?
AMutual inductance
BSelf inductance
CMagnetic fields
DHeating effect
430
Which one of the following devices does not function like an electric motor ?
AGalvanometer
BAmmeter
CVoltmeter
DTransformer