kward6072 kward6072
  • 27-02-2024
  • Physics
contestada

In a meter bridge, the balancing length from the left and (standard resistance of one ohm is in the right gap) is found to be 20 cm. The value of the unknown resistance is:
a) 20 ohms
b) 25 ohms
c) 30 ohms
d) 40 ohms

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