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In PN-junction diode the reverse saturat...

In `PN`-junction diode the reverse saturation curren is `10^(-5)` amp at `27^(@)C`. The forward current for a voltage of `0.2` volt is

A

`2037.6xx10^(-3) amp`

B

`203.76xx10^(-3) amp`

C

`20.37xx10^(-3) amp`

D

`2.0376xx10^(-3) amp`

Text Solution

Verified by Experts

The correct Answer is:
C
The forward current
`i=i_(s)(e^(eV//kT)-1)=10^(-5)[e^((1.6xx10^(-19)xx0.2)/(1.4xx10^(-23)xx300))-1]`
`=10^(-5)[2038.66-1]-20.376xx10^(-3)A`
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In a p-n junction diode the reverse saturation current is 10^(-5)A at 27^(@)C . Find the forward current for a voltage of 0.2 V . Given exp. (7.62)=2038.6,k=1.4xx10^(-23)JK^(-1) .

In a p-n junction diode the reverse saturation current is 10 muA . What will be the forward current for a voltager of 0.2 V ?

Knowledge Check

  • A P-N junction diode can withstand currents up to 10 mA . Under forward bias, The diode has a potential drop of 0.5 V across it which is assumed to be independent of current. The maximum voltage of the battery used to forward bias the diode when a resistance of 200 Omega is connected in series with it is

    A
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    B
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    C
    `2.7 V`
    D
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  • Find the incorrect statement regarding reverse saturation current in p-n junction diode

    A
    Reverse saturation current is also known as leakage current
    B
    Current doubles of every `100^(@) C` rise in temperature
    C
    Current carriers are produced by thermal agitation
    D
    Current is due to minority carriers

  • Pickout the incorrect statement regarding reverse saturation current in the p-n junction diode.

    A
    this currect doubles for every `100^@C` rise of temperature
    B
    the current is due to minority carriers
    C
    the curreny carriers are produced by thermal agitation
    D
    reverse saturation current is also known as leakage current

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    Passage II Diode current in a p-n junction diode is given by I-I_(0)[exp(eV)/(2kT)-1] where I_(0) is the reverse saturation current V is the voltage across the diode k is the boltzmann constant and T is the abosolute temperatuer For a given diode I_(0)=5 pA and T =300 k The forward current at a foward voltage V=0.6 V is

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    The current conducted by the p-n junction of a semiconductor diode is 100 muA at a voltage of -1V . Calculate the current at a voltage of +0.2 V .

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