The cat whisker wire present in the contact diode is used for_________(a) for heat dissipation(b) for charge transfer between sections(c) maintaining the pressure between sections(d) preventing current flowI had been asked this question during a job interview.My doubt is from The Point Contact Diode in division Semiconductor-Diode Characteristics of Electronic Devices & Circuits

The cat whisker wire present in the contact diode is used for_________

1.	The cat whisker wire present in the contact diode is used for_________(a) for heat dissipation(b) for charge transfer between sections(c) maintaining the pressure between sections(d) preventing current flowI had been asked this question during a job interview.My doubt is from The Point Contact Diode in division Semiconductor-Diode Characteristics of Electronic Devices & Circuits
Answer» The correct OPTION is (c) MAINTAINING the pressure between sections For explanation: The OPERATION of a contact diode depends on the pressure of contact between semiconductor CRYSTAL and point. The cat whisker wire presses against the crystal to form a section and the section allows the current flow. This is similar to the behaviour of PN diode.

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