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Sagot :
Answer: 9 Turns
Explanation: primary turns + secondary turns.
The smallest total number of turns (primary turns plus secondary turns) you will need to build the transformer is 9 turns
Data obtained from the question
- Primary voltage (Vₚ) = 70 V
- Secondary voltage (Vₛ) = 245 V
- Total turns =?
How to determine the primary and secondary turns
- Primary voltage (Vₚ) = 70 V
- Secondary voltage (Vₛ) = 245 V
- Primary turns (Nₚ) =?
- Secondary turns (Nₛ) =?
Nₛ / Nₚ = Vₛ / Vₚ
Nₛ / Nₚ = 245 / 70
Nₛ / Nₚ = 7 / 2
Thus,
- Primary turns (Nₚ) = 2 turns
- Secondary turns (Nₛ) = 7 turns
How to determine the total turns
- Primary turns (Nₚ) = 2 turns
- Secondary turns (Nₛ) = 7 turns
- Total turns =?
Total turns = Nₚ + Nₛ
Total turns = 2 + 7
Total turns = 9 turns
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