Electronics - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 2)
2.
A transformer is plugged into a 120 V rms source and has a primary current of 300 mA rms. The secondary is providing 18 V across a 10 load. What is the efficiency of the transformer?
Discussion:
14 comments Page 2 of 2.
Kalai said:
1 decade ago
Good solution.
Yogeshwaran said:
1 decade ago
Nice explation sir.
Ramkumar said:
1 decade ago
pin= v*i = 120*.3 = 36
pout = v^2/R = 18^2/10 = 32.4
eff = pout/pin = 32.4/36 = .9*100 = 90%
pout = v^2/R = 18^2/10 = 32.4
eff = pout/pin = 32.4/36 = .9*100 = 90%
Ricky said:
1 decade ago
How did you calculate it?
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