The transformation ratio in a step-up transfo | vedclass

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(B) The transformation ratio $k$ is defined as the ratio of the number of turns in the secondary coil $(N_s)$ to the number of turns in the primary co

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Greater than $1$

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(B) The transformation ratio $k$ 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 $(V_p)$.Mathematically,$k = \frac{N_s}{N_p} = \frac{V_s}{V_p}$.In a step-up transformer,the secondary voltage is greater than the primary voltage $(V_s > V_p)$,which implies that the number of turns in the secondary coil is greater than the number of turns in the primary coil $(N_s > N_p)$.Therefore,for a step-up transformer,the transformation ratio $k$ must be greater than $1$ $(k > 1)$.

The transformation ratio in a step-up transformer is

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