In the shown arrangement of the experiment of the meter bridge, if AC corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire AB is doubled?
x
`x/4`
4x
2x
if "r" increases area of cross section increases...so there should be a change in the length right? if r is doubled area increase twice so lenghth should decrease 4 times for resistance to remain same.....?
you r right that if cross section increases then the length of wire will also change but RESISTANCE/METER WILL REMAIN SAME. SO length of part AC would remain same....
I HOPE U R SATISFIED WITH THIS ANSWER.......
you r right that if cross section increases then the length of wire will also change but RESISTANCE/METER WILL REMAIN SAME. SO length of part AC would remain same....
I HOPE U R SATISFIED WITH THIS ANSWER.......
you r right that if cross section increases then the length of wire will also change but RESISTANCE/METER WILL REMAIN SAME. SO length of part AC would remain same....
I HOPE U R SATISFIED WITH THIS ANSWER.......