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.
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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.
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According to the given details, we can take the potential difference as 12v.
Then the given value of current is 2.5 mA.
Everyone knows that 1 A=1000m, so the value of 2.5mA is 0.0025 A.
The value of R is V/I.
The calculator for the resistance is given below.
R =12/0.0025
Hence, the value of R =4800 ohm.
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