Power Electronics A diac is turned on by ___________. Gate current Gate voltage A breakover voltage None of these Gate current Gate voltage A breakover voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor can termed as DC switch. Square wave switch. AC switch. Both a and B. DC switch. Square wave switch. AC switch. Both a and B. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Using heat sink. Using CB and fuse. Use of snubber circuit. Using equalizing circuit. Using heat sink. Using CB and fuse. Use of snubber circuit. Using equalizing circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. Low High None of these Extremely low Low High None of these Extremely low ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which semiconductor device acts like a diode and two transistor? Diac. Triac. UJT. SCR. Diac. Triac. UJT. SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation of 0.5 W compute the gate source resistance? 11.19 ohm 108 ohm 115 ohm 111.9 ohm 11.19 ohm 108 ohm 115 ohm 111.9 ohm ANSWER DOWNLOAD EXAMIANS APP
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