Basic Electronics
NAND operation is simply AND operation followed by
OR
NOR
AND
NOT
NOT
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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
NOT gate is also called
A. fusioner
B. diverter
C. convertor
D. inverter
AND gate can be formed by using two
A. NOT gates
B. OR gate
C. NOR gates
D. NAND gates
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