The turn ratio in step down transformer is 100:1 if current across primary is 1A then current across secondary will be:
Correct answer: C. 100A
- A. 10A
- B. 0.01A
- C. 100A
- D. 0.1A
Explanation
In a step-down transformer, the current and voltage are related by the turns ratio as follows:Transformer Current Formula:Iₚ × Nₚ = Iₛ × NₛWhere:Iₚ = primary currentIₛ = secondary currentNₚ = number of turns in primaryNₛ = number of turns in secondaryGiven:Turns ratio (Nₚ : Nₛ) = 100:1Primary current (Iₚ) = 1 ANow solve for Iₛ (secondary current):Iₛ = Iₚ × (Nₚ / Nₛ) Iₛ = 1 A × (100 / 1) Iₛ = 100 A
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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