the increase of current when 15 V is applied to 10000ohm rheostat which is adjusted to 1000ohm value

Given data:
•) applied voltage = 15 V
•). Resistance = 1000 ohm

Required:
•). The magnitude of current= ?

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We can find the relation ship between current, voltage and resistance with the help of Ohms law.

According to ohms law;

V= IR.

Rearranging the above equation;

I= V/ R

Putt the values in the above equation; we get

I= 15V/ 1000ohm

I = 0.015 A( ampere)

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The value of the current would be 0.15 ampere when Resistance is equal to 1000 and that of Voltage is equal to 15 V.