Chegg Solutions for Microelectronic Circuits (Adel S Sedra, Kenneth C Smith) (Z-Library)_parte_719

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Step of 5 6.040P Write the expression collector current for a particular npn transistor operated at fixed base-emitter voltage V. Substitute 10 mA for 25 mV for and 0.7 V for in the equation. = (1) Write the expression collector current for a particular npn transistor operated at fixed base-emitter voltage Substitute 25 mV for and 0.5 V for in the equation. 0.5 (2) = Step of 5 Determine the value of collector current for a base-emitter voltage of 0.5 Divide equation (1) by equation (2). = Thus, the new value of collector current, is Step of 5 Determine the slope of the ic - curve at = 700 Substitute 25 mV for and 700 mV for in the equation. Step of 5 Determine the slope of the ic - curve at = 500 T Substitute 25 mV for and 500 mV for in the equation. (4) Step of 5 Evaluate the ratio of slopes of the curves at 700 mV and 500 mV Divide equation (3) by equation (4). = Thus, the ratio of the slopes of the curves at 700 mV and 500 mV is,