1.

The current voltage relation of diode is given by I = (e^(1000V//T) - 1) mA, where the applied voltage V is in volts and the temperature T is in degree Kelvin. If a student makes an error measuring +-0.01 V while measuring the current of 5mA at 300K, what will be the error in the value of current in.

Answer»

`0.5 mA`
`0.05 mA`
`0.2 mA`
`0.02 mA`

SOLUTION :`I=(e^(1000V//T)-1)mA....(1)`
`:.5mA=e^(1000V//T)mA-1mA`
`:.6mA=e^(-1000V//T)mA`
`:.dt=e^(1000V//T)mAxx(1000)/(T)DV`
`=6mAxx(1000)/(300)xx0.01`
`=6xx(10)/(300)`
`=0.2 mA`


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