Power Electronics A single phase full bridge inverter can operate in load commutation mode in case load consists of RLC critically damped. RL. RLC overdamped. RLC underdamped. RLC critically damped. RL. RLC overdamped. RLC underdamped. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Thyristor can be protected from over voltages by using fuse. voltage clamping device. snubber circuit. heat sink. fuse. voltage clamping device. snubber circuit. heat sink. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ Remains the same Is decreased Is increased None of these Remains the same Is decreased Is increased None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The normal way to turn on a diac is by ___________. Gate voltage Breakover voltage Gate current None of these Gate voltage Breakover voltage Gate current None 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 ? CB. Voltage clamping device. Fast acting current limiting device (FACL fuse). Snubber circuit. CB. Voltage clamping device. Fast acting current limiting device (FACL fuse). Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac can pass a portion of ___________ half-cycle through the load. Only positive Both positive and negative Only negative None of these Only positive Both positive and negative Only negative None of these ANSWER DOWNLOAD EXAMIANS APP
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