A) \[1000:1\]
B) \[100:1\]
C) \[1:32\]
D) \[32:1\]
E) \[1:1000\]
Correct Answer: C
Solution :
Output power = input power i.e., \[{{V}_{s}}{{I}_{s}}={{V}_{p}}{{I}_{p}}\] or \[I_{s}^{2}{{R}_{out}}=I_{2}^{2}{{R}_{in}}\] or \[\sqrt{\left( \frac{{{R}_{out}}}{{{R}_{in}}} \right)}=\frac{{{I}_{p}}}{{{I}_{s}}}\] ?.. (1) Also, \[\frac{{{I}_{p}}}{{{I}_{s}}}=\frac{{{N}_{s}}}{{{N}_{p}}}\] ...(2) \[\therefore \]\[\frac{{{N}_{P}}}{{{N}_{s}}}=\sqrt{\left( \frac{{{R}_{in}}}{{{R}_{out}}} \right)}=\sqrt{\left( \frac{8}{8000} \right)}=\frac{1}{10\sqrt{10}}\] \[=1:32\]You need to login to perform this action.
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