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# N-type and P-type Semiconductors Quiz Questions and Answers PDF - 73

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## N-type and P-type Semiconductors Quiz Questions : Test 73

MCQ 361: In p-type material, minority carriers are

A) electrons
B) holes
C) neutrons
D) protons

MCQ 362: In positive feedback oscillators, output of an amplifier is feed back to the input with

A) 90° phase shift
B) 120° phase shift
C) 180° phase shift
D) no phase shift

MCQ 363: In oscillators, input DC power supply is converted into

A) mechanical energy
B) electrical energy
C) thermal energy
D) optical energy

MCQ 364: Free electrons are always present in

A) conduction band
B) Valance band
C) free holes band
D) free electrons band

MCQ 365: If peak voltage is 70 V then average voltage of halfwave rectifier is

A) 70 V
B) 22.3 V
C) 30 V
D) 60.7 V

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