An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be_____?
A. 1500 A.
B. 6000 A.
C. 2121.32 A.
D. 4242.64 A.
Power Electronics
A Triac has three terminals viz ___________?
A Triac has three terminals viz ___________?
A. Drain, source, gate
B. Two main terminal and a gate terminal
C. Cathode, anode, gate
D. None of the above
A thyristor is basically________?
A thyristor is basically________?
A. PNPN device
B. A combination of diac and triac
C. A set of SCRs
D. A set if SCR,diac and triac
A PNPN device having two gates is ___________?
A PNPN device having two gates is ___________?
A. Diac
B. Triac
C. SUS
D. BCS
A silicon controlled racitifier (SCR) is a ____________?
A silicon controlled racitifier (SCR) is a ____________?
A. Unijunction device
B. Device with three junction
C. Device with four junction
D. None of the above
A thyristor equivalent of a thyratron tube is a _________?
A thyristor equivalent of a thyratron tube is a _________?
A. Diac
B. Triac
C. Silicon controlled-rectifier SCR
D. None of above
A Triac is a ______________?
A Triac is a ______________?
A. 2 terminal switch
B. 2 terminal bilateral switch
C. 3 terminal bilateral switch
D. 3 terminal bidirectional switch