Answer:
1100 : 21
Explanation:
Vp = 110 V
Vs = 2.1 V
Let the number of turns in primary coil is Np and the number of turns in secondary coil is Ns.
According to the principle of transformer, when an ideal transformer is there
[tex]\frac{N_{s}}{N_{P}}=\frac{V_{s}}{V_{P}}[/tex]
[tex]\frac{N_{s}}{N_{P}}=\frac{2.1}{110}[/tex]
[tex]\frac{N_{s}}{N_{P}}=\frac{21}{1100}[/tex]
[tex]\frac{N_{p}}{N_{s}}=\frac{1100}{21}[/tex]
Thus, the ratio of number of turns to the primary to the secondary is 1100 : 21.
