what will the value given in qiestion
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Balancing meter bridge:
R = 3 Ω , l1 = 55 cm. 100-l1 = 45 cm
R / S = 55 / 45 = 11/9
So S = 9*3/11 =27/11 Ω
After resistance X is connected:
(R+X)/S = 75/25 = 3
X+3 = 3 * 27/11 = 81/11 Ω
X = 48/11 Ω
R = 3 Ω , l1 = 55 cm. 100-l1 = 45 cm
R / S = 55 / 45 = 11/9
So S = 9*3/11 =27/11 Ω
After resistance X is connected:
(R+X)/S = 75/25 = 3
X+3 = 3 * 27/11 = 81/11 Ω
X = 48/11 Ω
kvnmurty:
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