Power Electronics Example of a voltage clamping device aluminium block. snubber circuit. fast acting fuse. metal oxide varistor. aluminium block. snubber circuit. fast acting fuse. metal oxide varistor. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The UJT may be used as ___________. None of these A sawtooth generator Am amplifier A rectifier None of these A sawtooth generator Am amplifier A rectifier ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which semiconductor device acts like a diode and two transistor? Diac. SCR. UJT. Triac. Diac. SCR. UJT. Triac. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 600 V/µs. 1000 V/µs. 1200 V/µs. 800 V/µs. 600 V/µs. 1000 V/µs. 1200 V/µs. 800 V/µs. 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? 108 ohm 115 ohm 111.9 ohm 11.19 ohm 108 ohm 115 ohm 111.9 ohm 11.19 ohm ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is both (A) and (B). less than holding current. < latching current but greater than holding current and gate signal is present. < latching current but greater than holding current and gate signal is 0. both (A) and (B). less than holding current. < latching current but greater than holding current and gate signal is present. < latching current but greater than holding current and gate signal is 0. ANSWER DOWNLOAD EXAMIANS APP
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