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Q.

In a p-n junction diode the thickness of deplection layer is 2x10-6m and barrier potential is 0.3V. The intensity of the electrical field at the junction is

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a

1.5x105Vm-1 from n to p side

b

1.5x105Vm-1 from p to n side

c

0.6x10-6Vm-1 from n to p side

d

0.6x10-6Vm-1 from p to n side

answer is C.

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Detailed Solution

E=vd=0.32×106=1.5×105Vm1
Its direction from n to p side.

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