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Home/D8.60 Consider the constant-current source circuit in Fig. P8.59 for the general case of an emitter resistance Re. Let β = 100, VA = 25 V, and VBE = 0.7 V. Use the approximate expression for the output resistance Ro, to obtain a relationship between the output resistance Ro and the current I. Hence, find the output resistance for I = 0.1 mA, 0.2 mA, 0.5 mA, and 1 mA. For each case, give the required value of Re.

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D8.60 Consider the constant-current source circuit in Fig. P8.59 for the general case of an emitter resistance Re. Let β = 100, VA = 25 V, and VBE = 0.7 V. Use the approximate expression for the output resistance Ro, to obtain a relationship between the output resistance Ro and the current I. Hence, find the output resistance for I = 0.1 mA, 0.2 mA, 0.5 mA, and 1 mA. For each case, give the required value of Re.

D8.60 Consider the constant-current source circuit in Fig. P8.59 for the general case of an emitter resistance Re. Let β = 100, VA = 25 V, and VBE = 0.7 V. Use the approximate expression for the output resistance Ro, to obtain a relationship between the output resistance Ro and the current I. Hence, find the output resistance for I = 0.1 mA, 0.2 mA, 0.5 mA, and 1 mA. For each case, give the required value of Re.

D8.60 Consider the constant-current source circuit in Fig. P8.59 for the general case of an emitter resistance Re. Let β = 100, VA = 25 V, and VBE = 0.7 V. Use the approximate expression for the output resistance Ro, to obtain a relationship between the output resistance Ro and the current I. Hence, find the output resistance for I = 0.1 mA, 0.2 mA, 0.5 mA, and 1 mA. For each case, give the required value of Re.

D8.60 Consider the constant-current source circuit in Fig. P8.59 for the general case of an emitter resistance Re. Let β = 100, VA = 25 V, and VBE = 0.7 V. Use the approximate expression for the output resistance Ro, to obtain a relationship between the output resistance Ro and the current I. Hence, find the output resistance for I = 0.1 mA, 0.2 mA, 0.5 mA, and 1 mA. For each case, give the required value of Re.