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 When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ? Voltage clamping device. Fast acting current limiting device (FACL fuse). CB. Snubber circuit. Voltage clamping device. Fast acting current limiting device (FACL fuse). CB. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT is sometimes called ___________ diode. Single-base Low resistance High resistance Double-base Single-base Low resistance High resistance Double-base ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is used in heat sink? Silver. Carbon. Aluminium. Iron. Silver. Carbon. Aluminium. Iron. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The triac is ___________. None of these A four-terminal device Not a thyristor Like a bidirectional SCR None of these A four-terminal device Not a thyristor Like a bidirectional SCR ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is a ___________ switch Unidirectional Mechanical None of these Bidirectional Unidirectional Mechanical None of these Bidirectional ANSWER DOWNLOAD EXAMIANS APP
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