A step-up transformer has a transformation ra | vedclass

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Question

(A) The transformation ratio $k$ for a transformer is defined as the ratio of the number of turns in the secondary coil $(N_s)$ to the number of turns

Vedclass · Accepted Answer

$45$

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(A) The transformation ratio $k$ for a transformer is defined as the ratio of the number of turns in the secondary coil $(N_s)$ to the number of turns in the primary coil $(N_p)$,which is also equal to the ratio of the secondary voltage $(V_s)$ to the primary voltage $(V_p)$.Given,$k = \frac{N_s}{N_p} = \frac{3}{2}$.The relationship is given by: $\frac{V_s}{V_p} = k$.Substituting the given values: $\frac{V_s}{30\, V} = \frac{3}{2}$.Solving for $V_s$: $V_s = 30 	imes \frac{3}{2} = 15 	imes 3 = 45\, V$.Therefore,the voltage in the secondary coil is $45\, V$.

$A$ step-up transformer has a transformation ratio of $3:2$. What is the voltage in the secondary coil if the voltage in the primary coil is $30\, V$?

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