Question
Reason (R): Power transistor has greater switching time than SCR
a.
Both A and R are correct and R is correct explanation of A
b.
Both A and R correct but R is not correct explanation of A
c.
A is correct but R is wrong
d.
A is wrong but R is correct
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Assertion (A): Power transistor has lower switching time than SCR Reason (R): Power transistor has greater switching time than SCR
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. A 3 kV circuit uses SCR of 800 V rating. If derating is 25%, the number of SCRs in series is
View solution
Q. The number of doped regions in a SCR is
View solution
Q. All inverters use forced commutation.
View solution
Q. In 180° mode of operation of a 3 phase bridge inverter, two thyristors conduct at one time.
View solution
Q. In a single phase full wave ac regulator the rms value of load current is 20 A load is purely resistive. Then
View solution
Q. A reactor is used in a dual converter operating in non-circulating current mode.
View solution
Q. In a 3 phase full wave regulator feeding resistance load connected in star, the possible range of firing angle α is
View solution
Q. Assertion (A): A dual converter may be circulating current type or non circulating current type.
Reason (R): In circulating current dual converter only one converter can be operated at one time.
View solution
Q. Current chopping leads to
View solution
Q. A 3 phase bridge inverter is fed by 400 V battery. The load is star connected and has a resistance of 10 Ω per phase. The peak value of load current is
View solution
Q. In an SCR, the anode current is controlled by
View solution
Q. The rated current of a thyristor is 40 A. The holding current will be about :
View solution
Q. A cycloconverter is
View solution
Q. The number of leads in a power semiconductor diode are
View solution
Q. If ton and toff are the turn on and turn off times of a thyristor, then
View solution
Q. Assertion (A): The gate current of an SCR is always in the form of pulses.
Reason (R): The gate losses, in pulse triggering, are low.
View solution
Q. The average load current supplied by a thyristor depends on
View solution
Q. In a 3 phase full wave regulator feeding a star connected resistance load the input voltage is 400 V line to line. The firing angle is 160°. The line to line output voltage would be
View solution
Q. A thyristor is reverse biased. A positive gate pulse is applied. The thyristor
View solution
Q. A single phase series converter is used for
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
