1.

An inaccurate ammeter and silvercoulmeter is connected in seriesin an electriccircuitthroug which a constant directcurrentflowsif ammeter reads0.6 ampere throughout one hourthe silverdeposited on coulometer was found to be 2.16 g whast % erroris in the readingof ammetr [Assume100% currentefficiency ]

Answer»

0.01
0.0054
0.0006
0.1

Solution :`("WEIGHT")/("EQUIVALENT weight")=("it")/(96500)`
`(2.16 )/(108)=(ixx60xx60)/(96500) RARR I = 0.54 A`
Errorinreadingof ammeter=0.60 -0.54 = 0.06 A
% ERROR `=(0.06)/(0.60) xx100=10%`


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