The elements in the circuit in Figure have the following values: R1= 20 kΩ, R2 = 80 kΩ, Rc = 0.82 kΩ, RE = 0.2 kΩ, Vcc = 7.5 V, V0 = 0.6 V, and β = 39.
a) Calculate the value of iB in microamperes.
b) Assume that a digital multimeter, when used as a dc ammeter, has a resistance of 1 kΩ. If the meter is inserted between terminals b and 2 to measure the current iB, what will the meter read?
c) Using the calculated value of iB in (a) as the correct value, what is the percentage of error in the measurement?
Figure
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