The following arrangement consists of an ideal transformer

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The following arrangement consists of an ideal transformer and an attenuator which attenuates by a factor of 0.8. An ac voltage V_wx1 = l00V is applied across WX to get an open circuit voltage V_yz1, across YZ. Next, an ac voltageV_yz2 = 100V is applied across YZ to get an open circuit voltage V_wx2 across WX. Then, V_yz1 V_WX1/V_WX2/V_YZ2 are respectively.

1. 125/100 and 80/100
2. 100/100 and 80/100
3. 100/100 and 100/100
4. 80/100 and 80/100

Correct Option: B

1st case :
V_wx1 = 100 V

So, V_y'z1 =	M₂	V_wx₁ = 1.25 × 100 = 125V
	M₁

∴ V_y'z₁ = V_y'z₁ × x = 125 × 0.8 = 100 v.
∴ V_yz₁ /V_{wx¹ = 100/100
2nd case :
V_yz2 = 100 V
∴ V_y't₂ = 100 = 100 = 125 v
α 0.8

Now, V_wx₂ = M₁ V_y'z₂ = 1 × 125 = 100 v
M₂ 1.25

∴ V_wx₂/V_yz₂ = 100/100
V_wx₂ = 100V}