Physics · Magnetism and Electromagnetic Induction
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In step up transformer the condition is:
- A
Ns<Np
- B
Ns>Np
- C
Ns=Np
- D
None of these
Hence, in a step-up transformer, the number of turns in the primary is less than the number turns in the secondary.
This is in case of step down transformer where number of turns of primary is greater than secondary.
In step up transformer, number of secondary turn is greater than primary turn.
As we
Vs/Vp = Ip/Is
Also, Vs/Vp = Ns/Np
Hence, Vs/Vp = Ip/Is = Ns/ Np
In step-up transformer, Vs>Vp.
Thus, Ns>Np is the correct option.
Ns cannot be equal to Np. Hence, this statement is wrong.
A transformer cannot be step-up and step-down simultaneously.
Tagged under Physics · Magnetism and Electromagnetic Induction · 2004