Which of the following relations correctly gives the ratio of rms voltages to the…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Which of the following relations correctly gives the ratio of rms voltages to the ratio of turns in an ideal transformer? (a)

\dfrac{V_1}{V_2}=\dfrac{N_2}{N_1}

(b)

\dfrac{V_1}{V_2}=\dfrac{I_1}{I_2}

(c)

\dfrac{V_1}{V_2}=\dfrac{N_1}{N_2}

(d)

\dfrac{V_1}{V_2}=\left(\dfrac{N_1}{N_2}\right)^2