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Physics

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Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

A The light emitting diodes

B Photo diodes

C Photo voltaic cell

D Solar cells.

A An analogue waveform

B Continuous wave form

C Electronic waveform

D A digital waveform

A D.C.

B A.C.

C Both A.C. & D.C.

D None of the above

A n-carriers only

B p-carriers only

C p-carriers and n-carriers respectively

D n-carriers and p-carriers respectively

A Logic gates

B Boolean algebra

C Amplifier gain

D Logic functions

A Increases

B Decreases

C Remains same

D No effect

A Equal to D.C. value

B More than D.C. value

C Less than D.C. value

D Zero

A 2

B 3

C 4

D 5

A Step up transformer

B Step down transformer

C Three diodes in common

D Triode vacuum tube

A Non-inverting voltage at output

B Reference voltage on the other

C Virtual input

D Output

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The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?

The rectangular voltage is an example of____________________?

An OP-AMPs can amplify_______________?

Acceptor and donor impurities donate______________?

The electronic circuits which implement the various logic operations are called_____________?

In forward bias the width of potential barrier_____________?

In a half-wave rectifier the r.m.s. value of the A.C. component of the wave is________________?

To obtain a p-type semi-conductor Si Crystal must be doped with foreign atoms whose valency is_____________?

The working of transistor as amplifier is similar to________________?

An OP-AMP comparator is a circuit that compares the signal voltage on one of its inputs with a ______________?