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18. The relationship between the collector current and a light-generated base current is (a)IC=βDCIλ[Floyd]Section 4–820. In a transistor amplifier, if the base-emitter junction is open, the collector voltage is (a) V CC Chapter 4 Problems26. A 50 mV signal is applied to the base of a properly biased transistor with = 10 Ω and RC = 560 Ω. Determine the signal voltage at the collector. - 29. Determine IC (sat) for the transistor in Figure 4–58. What is the value of IB necessary to produce saturation? What minimum value of VIN is necessary for saturation? Assume VCE (sat)
34. The optical coupler shown in Figure 4–61is required to deliver at least 10 mA to the externalload. If the current transfer ratio is 60 percent, how much current must be supplied to the input? –)