Questions
A potentiometer is an accurate and versatile device to make electrical measurements of EMF because the method involves
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a
potential gradients
b
a condition of no current flow through the galvanometer
c
a combination of cells, galvanometer and resistances
d
cells
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Correct option is B
A potentiometer is an accurate and versatile device to make electrical measurements of emf because the method involves a condition of no current flow through the galvanometer, the device can be used to measure potential difference, internal resistance of a cell and compare emf's of two sources.Similar Questions
A potentiometer is an ideal device of measuring potential difference because
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