The specially designed semi-conductor diodes used as fast counters in electronic circuits are______________?
A. The light emitting diodes
B. Photo diodes
C. Photo voltaic cell
D. Solar cells.
Physics MCQs with Answers
The alternating voltage is an example of_______________?
A. A digital waveform
B. An analogue waveform
C. Discrete waveform
D. None at all
The operational amplifier is______________?
A. A high gain amplifier
B. A high-power amplifier
C. A high resistance amplifier
D. A low resistance amplifier
The operation of a transistor requires______________?
A. That the emitter be heated
B. That the base be heated
C. That the collector be heated
D. None of the above
Non-inverting amplifier circuits have____________?
A. A very high input impedance
B. A very low input impedance
C. A low output impedance
D. None of the above
An OP-AMP comparator is a circuit that compares the signal voltage on one of its inputs with a ______________?
A. Non-inverting voltage at output
B. Reference voltage on the other
C. Virtual input
D. Output
The working of transistor as amplifier is similar to________________?
A. Step up transformer
B. Step down transformer
C. Three diodes in common
D. Triode vacuum tube
In a half-wave rectifier the r.m.s. value of the A.C. component of the wave is________________?
A. Equal to D.C. value
B. More than D.C. value
C. Less than D.C. value
D. Zero
