Question
Reason (R): Voltage across a capacitor can not change instantaneously.
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): Snubber circuit has an RC series circuit in parallel with SCR Reason (R): Voltage across a capacitor can not change instantaneously.
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. In dielectric heating, the thyristor circuits consist of
View solution
Q. On load tap changer using thyristors can have a maximum of two taps.
View solution
Q. Assertion (A): A cycloconverter may be line commutated or forced commutated
Reason (R): A step up cycloconverter requires forced commutation.
View solution
Q. When thyristors are connected in series and parallel, it may be necessary to have :
View solution
Q. A single phase half wave regulator uses
View solution
Q. A Shockley diode can be used
View solution
Q. An SCR has a turn on time of 4 μs. The gate pulse should have a duration of about
View solution
Q. In a multiphase chopper, the different choppers operate in
View solution
Q. In a dual converter both converters work as rectifiers.
View solution
Q. A single phase full wave regulator feeds R-L load. The best gating signal is
View solution
Q. A 3 phase induction motor is fed by a 3 phase ac regulator to change the stator voltage. The variation in speed will be more if
View solution
Q. A cycloconverter cannot give a frequency higher than input frequency.
View solution
Q. A thyristor has internal power dissipation of 40W and is operated at an ambient temperature of 20°C. If thermal resistance is 1.6° C/W, the junction temperature is
View solution
Q. In a single phase dual converter, α1, and α2 are firing angles of the two converters. Then
View solution
Q. The number of gates in an SCR is
View solution
Q. The waveshape of output voltage of half bridge inverter is
View solution
Q. A 3 phase induction motor is controlled by voltage and frequency control such that the ratio V/f is constant. At 50 Hz, the speed is 1440 rpm. At 25 Hz, the speed is likely to be
View solution
Q. The gate current required to turn on an SCR is
View solution
Q. Assertion (A): A high dv/dt may cause triggering of a thyristor.
Reason (R): A high dv/dt results in charging current in the thyristor.
View solution
Q. Assertion (A): When an SCR is conducting, the voltage drop across is about 1 V.
Reason (R): When an SCR is conducting, the junction temperature is about 200°C.
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!
