BASIC ELECTRICAL PART 14 ONLINE MCQ EE

A.  An instantaneous rise and a defined decay

B.  A defined rise and an instantaneous decay

C.  A defined rise and a defined decay, and the two are equal

D.  An instantaneous rise and an instantaneous decay

[10] The colour bands on a carbon composition resistor occur in the sequence: yellow, violet, yellow and silver. Its resistance is
(a) 470 KΩ± 47 KΩ
(b) 470 KΩ± 23.5 %
(c) 47 KΩ± 10 %
(d) 47 KΩ± 5 %

Answer

BASIC ELECTRICAL PART 14

[11] If 120°C of charge passes through an electric conductor in 60 sec, the current in the conductor is
(a) 0.5A
(b) 2A
(c) 3.33mA
(d) 0.3mA

Answer

[12] The energy required to move 120 coulomb through 3V is
(a) 25mJ
(b) 360J
(c) 40J
(d) 2.78mJ

Answer

BASIC ELECTRICAL PART 14

[13] The current carrying capacity of a 1W, 4MΩ resistor used in radio receiver is
(a) 0.5kA
(b) 2kA
(c) 2mA
(d) 0.5mA

Answer

[14] A capacitor is charged by a constant current of 2mA and results in a voltage increase of 12V in a 10 sec interval. The value of capacitance is
(a) 0.75mF
(b) 1.33mF
(c) 0.6mF
(d) 1.67mF

Answer

BASIC ELECTRICAL PART 14

[15] Three phase ac supply

A.  Has sawtooth waves that add together in phase

B.  Consists of three sine waves in different phases

C.  Is a sine wave with exactly three harmonics

D.  Is of interest only to physicists