Computer Science - Electronic Principles - Discussion

Discussion Forum : Electronic Principles - Section 1 (Q.No. 18)
18.
A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current?
7.8 mA
208 mA
200 mA
300 mA
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Ofoe stephen said:   6 years ago
How can I go by solving it?

Bimal said:   7 years ago
Input current= (Output Voltage/InputVoltage)* Output Current.

Malik said:   1 decade ago
How do you use the formula to solve the problem?

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