Basic Electronics

Basic Electronics
An analog circuit which amplifies the signal without changing its shape to such an extent that it can operate a loudspeaker is called
grid
amplifier
woofer
switch
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Basic Electronics
The number of electrons from grid reaching the screen determines the
brightness level
picture quality
sound quality
none of above
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Basic Electronics
To investigate the properties of electron beam, we use
proton gun
bullet gun
voltage gun
electron gun
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Basic Electronics
The number of possible states that a switch has been
3
2
4
5
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Basic Electronics
Cathode rays must carry
positive charge
no charge
negative charge
all of above
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Basic Electronics
To make a burglar alarm, we can use a single
AND gate
OR gate
NAND gate
NOT gate
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Basic Electronics
An LDR in house safety alarm causes
low input on light
high input on light
high resistance
all of above
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Basic Electronics
J.J Thomson in 1897 observed the deflection of cathode rays by
electric field
magnetic field
chemical field
electric and magnetic field
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Basic Electronics
When anyone of inputs is at 1, the value of output of OR gate will be
2
1
3
0
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Basic Electronics
The output of two-input NOR gate is 1 when
A = 1, B = 0
A = 0, B = 1
A = 0, B = 1
A = 1 ,B = 1
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