Final answer:
To calculate the value of A in the equation AC = BRC/Ri + 2(β+1)BE, substitute the given values into the equation and solve for A. You will get the value of A to be 3415.66.
Step-by-step explanation:
To calculate the value of A in the equation AC = BRC/Ri + 2(β+1)BE, we need to substitute the given values of AC, B, RC, Ri, and β into the equation and solve for A.
AC = 0.372, B = 125, RC = 60kΩ, Ri = 20kΩ, and β = 125
Substituting these values into the equation, we get:
0.372 = (125 * 60kΩ) / (20kΩ) + 2(125+1)BE
Simplifying the equation further:
0.372 = 3750 + 252BE
252BE = -3377.628
BE = -13.41
Substituting the value of BE back into the equation, we can solve for A:
AC = (125 * 60kΩ) / (20kΩ) + 2(125+1) * -13.41
AC = 3750 - 353.34
AC = 3415.66
Therefore, the value of A is approximately 3415.66.