6. A diac has ………… terminals.
(a) two
(b) three
(c) four
(d) none of the above
7. A triac has ………… semiconductor layers.
(a) two
(b) three
(c) four
(d) five
8. A diac has ………… pn junctions.
(a) four
(b) two
(c) three
(d) none of the above
9. The device that does not have the gate terminal is …………
(a) triac
(b) FET
(c) SCR
(d) diac
10. A diac has ………… semiconductor layers.
(a) three
(b) two
(c) four
(d) none of the above
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Power Semiconductor Devices » Exercise - 1 25. The device that exhibits negative resistance region is ........................ (a) diac (b) triac (c) transistor (d) UJT- Power Semiconductor Devices » Exercise - 1 9. The device that does not have the gate terminal is ............ (a) triac (b) FET (c) SCR (d) diac
- Power Semiconductor Devices » Exercise - 1 27. A diac is simply ........................ (a) a single junction device (b) a three junction device (c) a triac without gate terminal (d) none of the above
- Power Semiconductor Devices » Exercise - 1 16. When the emitter terminal of a UJT is open, the resistance between the base terminals is generally ............ (a) high (b) low (c) extremely low (d) none of the above
- Power Semiconductor Devices » Exercise - 1 28. After peak point, the UJT operates in the ........................ region. (a) cut-off (b) saturation (c) negative resistance (d) none of the above