Electrical Engineering Mcqs

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 Triac is a ______________?
  • (A)  2 terminal switch
  • (B)  2 terminal bilateral switch
  • (C)  3 terminal bilateral switch
  • (D)  3 terminal bidirectional switch
In forward blocking mode of a thyristor________?
  • (A)  junction J2 is in reverse bias and J1, J3 is in forward bias.
  • (B)  junction J3 is in forward bias and J1, J2 is in reverse bias.
  • (C)  Junction J1, J3 is in reverse bias and J2 is in forward bias.
  • (D)  Junction J1 and J2 is in forward bias and J3 is in reverse bias.