Question on: JAMB Physics - 2010

The diagram above shows a balanced metre bridge, the value of x is
A
75.0 cm
B
66.7 cm
C
33.3 cm
D
25.0 cm
Ask EduPadi AI for a detailed answer
Correct Option: C

1/R = 1/8 + 1/8 = 2/8

∴ R = 4Ω
l/l1 = R/R1

(x)/(100-x) = 4/8

4(100-x) = 8x

400-4x = 8x

400 = 8x + 4x = 12x

x = 400/12 = 33.3cm

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