The resistance of the rheostat shown in ...

The resistance of the rheostat shown in figure is `30(Omega)`. Neglecting the meter resistance,find the minimum and maximum currents through the ammeter as the rheostat is varied.

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`i_min = (5.5 xx 3/110) = 1.5 /10 = 0.15 `
` i_max = (5.5 xx 3 / 20) = 8.25/10 = 0.825`.

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