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To find the current gain β (beta) from the forward current gain α (alpha) for a power transistor, you can use the following relationship:
[
beta = frac{alpha}{1 – alpha}
]
Given that α = 0.97, we can substitute this value into the equation:
[
beta = frac{0.97}{1 – 0.97} = frac{0.97}{0.03} approx 32.33
]
Thus, the value of β is approximately 32.33.
d
Explanation: Use the relation α = β/(β+1).