Power Electronics The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant Transistor UJT None of these SCR Transistor UJT None of these SCR ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Rise time is defined by the interval when anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. gate current rises from 90 % to 100 % of it final value. anode current rises 10 % to 90 % of its final value. anode voltage drops from 90 % to 10 % of its initial value. both B and C. gate current rises from 90 % to 100 % of it final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Materials used in heat sink should have high melting point. large surface area. high thermal conductivity. All of these. high melting point. large surface area. high thermal conductivity. All of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following devices has highest di/dt and dv/dt capability? SIT. GTO. SITH. SCR. SIT. GTO. SITH. SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is not a characteristic of UJT? Peak-point voltage Bilateral conduction Negative resistance Intrinsic stand off ratio Peak-point voltage Bilateral conduction Negative resistance Intrinsic stand off ratio ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Use of snubber circuit. Using CB and fuse. Using equalizing circuit. Using heat sink. Use of snubber circuit. Using CB and fuse. Using equalizing circuit. Using heat sink. ANSWER DOWNLOAD EXAMIANS APP
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