The following apparatus is available in a laboratory.Cell : Adjustable from 0 to 1.5 voltResistor : 4 W and 12 WAmmeters : A1 of range 0 to 3 A; Least count 0.1 A A2 of range 0 to 1 A ; Least count 0.05 AVoltmeters : V1 of range 0 to 10 V; Least count 0.5 V V2 of range 0 to 5 V; Least count 0.1 VFind the best combination of ammeter and voltmeter for finding the equivalent resistance of the resistors.

The following apparatus is available in a laboratory.Cell : Adjustable

1.	The following apparatus is available in a laboratory.Cell : Adjustable from 0 to 1.5 voltResistor : 4 W and 12 WAmmeters : A1 of range 0 to 3 A; Least count 0.1 A A2 of range 0 to 1 A ; Least count 0.05 AVoltmeters : V1 of range 0 to 10 V; Least count 0.5 V V2 of range 0 to 5 V; Least count 0.1 VFind the best combination of ammeter and voltmeter for finding the equivalent resistance of the resistors.
Answer» The overall range of the voltage is from 0 to 1.5 V and that of current is from 0 to 1.5/3A = 0.5 A. We, therefore, prefer instruments that cover these ranges and also have a better least count.

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