Question

Why is the Wheatstone bridge better than the
other methods of measuring resistances?
(a) It does not involve Ohm’s law
(b) It is based on Kirchoff’s law
(c) It has four resistor arms
(d) It is a null method

Answer 1

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(d) It is a null method

The Wheatstone bridge method is more accurate than the other methods of measuring resistances because it uses null method. Hence the internal resistance of the cell and resistance of galvanometer do not affect the null point.

Answer 2

Answer:

it is based on tiger shroff law