AIPMT 2004 | Semiconductor Electronics Question 99 | Physics

AIPMT 2004

MCQ (Single Correct Answer)

-1

The peak voltage in the output of a half wave diode rectifier fed with a sinusoidal signal without filter is 10 V. The d.c. component of the output voltage is

(10/$$\sqrt 2 $$) V

$$\left( {{{10} \over \pi }} \right)V$$

10 V

(20/$$\pi $$) V

AIPMT 2003

MCQ (Single Correct Answer)

-1

Out of Syllabus

A n-p-n transistor conducts when

both collector and emitter are positive with respect to the base

collector is positive and emitter is negative with respect to the base

collector is positive and emitter is at same potential as the base

both collector and emitter are negative with respect to the base

AIPMT 2003

MCQ (Single Correct Answer)

-1

Reverse bias applied to a junction diode

lowers the potential barrier

raises the potential barrier

increases the majority carrier current

increases the minority carrier current

AIPMT 2003

MCQ (Single Correct Answer)

-1

If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be

25 Hz

50 Hz

70.7 Hz

100 Hz

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