Electronic Devices and Circuits
Permalloy is

A nickel an iron alloy having high permeability
A conon-ferrous alloy used in aircraft industry
A variety of stainless steel
A polymer

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Electronic Devices and Circuits
Assertion (A): A p-n junction has high resistance in reverse direction.Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true

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Electronic Devices and Circuits
Assertion (A): A JFET can be used as a current source.Reason (R): In beyond pinch off region the current in JFET is nearly constant.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true

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Electronic Devices and Circuits
When diodes are connected in series to increase voltage rating the peak inverse voltage per junction

should not exceed the breakdown voltage
should not exceed one third the breakdown voltage
should not exceed half the breakdown voltage
may be equal to or less than breakdown voltage

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