When a 12 V battery is connected across an unknown resistor there is a current of 25 mA in the circuit Find the value of the resistance of the resistor CBSE Physics
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When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor. -CBSE Physics




By:milan-ransingh

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Solution:
We have potential difference (V) = 12V
Electric current (I)=2.5 mA= 2.4×10-3
According to Ohm’s Law (V) = IR
Or  R = V/I


 

13priya

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