A) 20 V and 0.1 A
B) 0.2 V and 1 A
C) 20 V and 0.09 A
D) 0.2 V and 0.9 A
Correct Answer: A
Solution :
Given, \[{{N}_{p}}=10\] \[{{N}_{S}}=100,\text{ }\eta =90%\] \[{{V}_{p}}=2V,~~Vs=?\] \[{{i}_{p}}=1A,~~{{i}_{s}}=?\] For a transformer \[\frac{{{N}_{s}}}{{{N}_{p}}}=\frac{{{V}_{S}}}{{{V}_{P}}}=\frac{{{i}_{P}}}{{{i}_{S}}}\] \[\frac{100}{10}=\frac{{{V}_{S}}}{2}\] \[\Rightarrow \] \[{{V}_{S}}=20V\] Similarly, \[\frac{100}{10}=\frac{1}{{{i}_{s}}}\] \[{{i}_{s}}=0.1A\]You need to login to perform this action.
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