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When a 12 V battery is connected across ...

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.

Text Solution

Verified by Experts

According to Ohm.s law, V = IR
`rarrR=(V )/(I)`
Here, V = 12 V and I = 2.5 mA = 0.0025 A Therefore,
`R=(12)/(0.0025)=4800 omega =4.8 k omega`
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