Basic Electronics
When the beam of electrons is passed between the pates having an electric field, the beam deflects towards
negative plate
positive plate
goes straight
neutral plate
positive plate
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The number of electrons reaching the screen determines the screen’sA. size
B. brightness
C. frequency
D. amplitude
To display heartbeats, waveforms and measuring voltages we use
A. cystoscope
B. gastroscope
C. microscope
D. cathode-ray oscilloscope
The cathode rays carry
A. positive charge
B. neutral
C. negative charge
D. positrons
An alternating voltage varying between the maximum value of +5V and the minimum value of โ5V is
A. digital signal
B. analogue signal
C. Wi-Fi signal
D. current signal
For thermionic emission, the voltage applied should be of
A. 5 V
B. 7 V
C. 8 V
D. 6 V
NAND operation is simply AND operation followed by
A. OR
B. NOR
C. AND
D. NOT
NOT gate is also called
A. fusioner
B. diverter
C. convertor
D. inverter
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