46. At –65ºC the minimum current that will trigger the series of an SCR is ________, while at +150ºC only ________ is required.
(a) 20 mA, 100 mA
(b) 50 mA, 75 mA
(c) 75 mA, 50 mA
(d) 100 mA, 20 mA
47. The ________ are the terminals of SCRs.
(a) anode and cathode
(b) anode, gate, and cathode
(c) base, anode, and cathode
(d) gate and anode
48. ________ is (are) the element(s) of a unijunction transistor’s equivalent circuit.
(a) One fixed resistor
(b) A variable resistor
(c) A diode
(d) All of the above
49. The current induced by photoelectric effects is the ________ current of the transistor.
(a) collector
(b) base
(c) emitter
(d) None of the above
50. ________ in light intensity corresponds with ________ in collector current.
(a) An increase, an increase
(b) An increase, a decrease
(c) A decrease, an increase
(d) None of the above
Related Posts
555555555527. Which one of the SCR terminals fires the SCR? (a) Anode (b) Cathode (c) Gate (d) All of the above- 555555555540. What is the typical value of the triggering anode gate for SCS devices? (a) 1.5 mA (b) 150 A (c) 15 A (d) 1 A
- 555555555534. Which of the following devices has the smallest turn-off time? (a) SCR (b) GTO (c) SCS (d) LASCR
- 555555555535. Which of the following devices has nearly the same turn-on time as turn-off time? (a) SCR (b) GTO (c) SCS (d) LASCR
- 555555555547. The ________ are the terminals of SCRs. (a) anode and cathode (b) anode, gate, and cathode (c) base, anode, and cathode (d) gate and anode