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 The device that exhibits negative resistance region is ___________. Diac UJT Triac Transistor Diac UJT Triac Transistor ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The maximum di/dt in a SCR is Directly proportional to supply voltage. Inversely proportional to supply voltage. Directly proportional to inductance in the circuit. Both A and B. Directly proportional to supply voltage. Inversely proportional to supply voltage. Directly proportional to inductance in the circuit. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac has ___________ terminals. Two Four Three None of these Two Four Three None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Let of a thyristor Vc1, Vc2, Vc3 are forward break over voltage for gate current Ig1, Ig2, Ig3 respectively. Then Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Dynamic equalising circuit is useful to limit dV / dt of SCR. for voltage equalisation. both B and C. to limit di / dt of SCR. to limit dV / dt of SCR. for voltage equalisation. both B and C. to limit di / dt of SCR. ANSWER DOWNLOAD EXAMIANS APP
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