1.

In a step up transformer, primary power is 50 W and output voltage is 100 V. If the current in the primary is 1 A.a. What is the primary voltage? b. What will be the current in the second ary?c. \(\cfrac{Secondary\,power}{Primary\,power}\)= ?

Answer»

a. P = Vp × Ip

500 W = V× 1A, Vp = 500 V

b. Is = \( \left(\cfrac { I_p × V_p }{ V_s }\right)\) = \(\cfrac{1 \times 500}{100}\) = 5A

c. Primary and secondary powers are equal

\(\cfrac{Secondary\,power}{Primary\,power}\) = 1



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