Electronic Devices - Power Amplifiers - Discussion
Discussion Forum : Power Amplifiers - General Questions (Q.No. 57)
57.
Calculate the effective resistance seen looking into the primary of a 20:1 transformer connected to an 8-
load.
load.3.2 k
3.0 k
2.8 k
1.8 k
Discussion:
1 comments Page 1 of 1.
Ashoka J said:
1 decade ago
Transformation ratio k = 20/1 = 20.
So R1e = k^2*R2 = 400*8 = 3200 ohm or 3.2 kohm.
So R1e = k^2*R2 = 400*8 = 3200 ohm or 3.2 kohm.
(1)
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