Question 4
A step-up transformer is designed to operate from a 25v supply. If the transformer is 80% efficient, determine the current in the primary coil when the output terminals are not connected to 240V 100W lamp
Objective
Question details
- Exam body
- ABU
- Subject
- Physics
- Year
- 2014/2015
- Question no.
- #4
- Type
- Objective
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