You Are On Multi Choice Question Bank SET 1008
50401. Refer to the given figure. This circuit is known as
50402. The output of a Schmitt trigger is a
50403. The permitted flavoring agent in butter is-----
50404. Refer to the given figure. A square-wave input is applied to this amplifier. The output voltage is most likely to be
50405. Refer to this figure. The value of VBC is:
50406. When a transistor is used as a switch, it is stable in which two distinct regions?
50407. The term BJT is short for
50408. For a silicon transistor, when a base-emitter junction is forward-biased, it has a nominal voltage drop of
50409. A certain transistor has IC = 15 mA and IB = 167 A; DC is:
50410. Refer to this figure. The value of VCE is:
50411. What does DC vary with?
50412. A BJT has an IB of 50 A and a DC of 75; IC is:
50413. Refer to this figure. The value of VBE is:
50414. What are the two types of bipolar junction transistors?
50415. In this circuit DC = 100 and VIN = 8 V. The value of RB that will produce saturation is:
50416. The value of DC
50417. A transistor data sheet usually identifies DC as
50418. What is the ratio of IC to IE?
50419. Refer to this figure. The value of DC = 100 and VIN = 8 V. Determine IC(sat).
50420. Which of the following is true for an npn or pnp transistor?
50421. What is the order of doping, from heavily to lightly doped, for each region?
50422. In what range of voltages is the transistor in the linear region of its operation?
50423. The magnitude of dark current in a phototransistor usually falls in what range?
50424. A 35 mV signal is applied to the base of a properly biased transistor with an r'e = 8 and RC = 1 k. The output signal voltage at the collector is:
50425. What is (are) general-purpose/small-signal transistors case type(s)?
50426. What is (are) common fault(s) in a BJT-based circuit?
50427. The dc load line on a family of collector characteristic curves of a transistor shows the
50428. Refer to this figure. Determine the minimum value of VIN from the following that will saturate this transistor.
50429. It is best to check a transistor in-circuit before removing it.
50430. A BJT consists of three regions: base, emitter, and collector.
50431. BJT transistors are of two general types, npn and pnp.
50432. In saturation, both the base-collector and base-emitter junctions are forward-biased.
50433. DC is the ratio of IC to IE.
50434. PD(max) is usually specified at 25°C. For higher temperatures, the value of PD(max) is greater.
50435. Both junctions of a BJT should be forward-biased for linear operation.
50436. If maximum IC and maximum VCE are applied to a BJT, maximum power dissipation will not be exceeded.
50437. DC = IE/IC
50438. Av RC/r'e
50439. Phototransistors usually respond only to light in the red or infrared spectrum.
50440. Refer to this figure. Determine the minimum value of IB that will produce saturation.
50441. A transistor amplifier has a voltage gain of 100. If the input voltage is 75 mV, the output voltage is:
50442. Refer to this figure. If VCE = 0.2 V, IC(sat) is:
50443. What is the ratio of IC to IB?
50444. For normal operation of a pnp BJT, the base must be ________ with respect to the emitter and ________ with respect to the collector.
50445. Which of the following conditions must be met to allow the use of the approximate approach in a voltage-divider bias configuration?
50446. Refer to this figure. Determine the value of Av.
50447. For a common-emitter amplifier, the purpose of swamping is
50448. What is the typical value of the current gain of a common-base configuration?
50449. What is the most important r parameter for amplifier analysis?
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50450. An emitter-follower is also known as a
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