Electronics multiple type question with answer

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1-one of the best example of an active device is a/an
a- electric bulb
b- transformer
c- loudspeaker
d-scilicon control rectifier

2- Which one of the following is used as a passive component in Electronics circuit
a- Resistor
b-Vaccum tube
c- Transistor
d- Tunnel tube

3- With the help of radar we can
a- listen to more melodious music
b- perform mathematical calculation very fast
c- cure the damaged tissues in human body
d-detect the presence of an aircraft as well        as locate it's position

 4- An AC voltage can be converted into               unidirectional voltage by using
a- power amplifier
b- a multivibrator
c-an oscillator circuit
d- a rectifier circuit

5-The colour bands on a fixed carbon resisRes are: brown ,red, black (given sequentially) it's value is
a- 12 ohm
b- 21 ohm
c-129 ohm
d-210 ohm

6- An ideal voltage source is one which has
a- very high internal resistance
b- zero internal resistance
c- very low internal resistance
d- infinite internal resistance

7- An ideal current source is one whose internal resistance is
a- very high
b-zero
c-very low
d-infinite

8-A device whose characteristics are very close to that of an ideal voltage source is a
a-vacuum tube
b-field effect transistor
c-transistor in common base mode
d-zener diode

 9-A device whose characteristics are very close to ideal current source is a
a- transistor in common base mode
b-gas diode
c-crystal diode
d-vaccum diode

10- An electron in conduction band
a- is bound to its parent atom
b- is located near the top of the crystal
c- has no charge
d-has a higher energy than an electron in the balance band

Comments

  1. UnknownMay 23, 2020 at 6:05 AM

    Good question but increased the number of question plzz

    ReplyDelete

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