Refer to Example 10.3 and Figure 10.17. Assume that all given values are unchanged except that RC = 340 ?, ILED ? 10 mA, and that the maximum base current supplied by the microprocessor is 5 mA. Find the range of values of RB that satisfy these requirements.



Known quantities:

For the circuit shown in Figure 10.14 in the text:



Find:

Minimum value of ? that will ensure the correct operation of the LED.


Analysis:

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