1.

When a 4 V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. The value of the resistance of the resistor is

Answer»

`4 OMEGA`
`40 Omega`
`400 Omega`
`0.4 Omega`

Solution :RESISTANCE `R=(V)/(I)=(4V)/(100mA)=(4V)/(0.1A)=40 Omega`


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