1.

B Wnen a 12Vbaheny is comneuted aross an unisanourn resistor there is a current.425m& in dihe choat. Find the abue of the resistance ol the resistot.

Answer»

Potential differemce=12vcurrent = 2.5mA∵1 A=1000m∴2.5mA=0.0025 A

∵R=V/I =12/0.0025 =4800 ohm



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