During the manufacture of point contact diode, why is a relatively large current passed from cat whisker to silicon crystal?(a) to control the amountof current flow(b) to form small region of p type material(c) to allow mechanical support for the sections(d) to form anode and cathode regionsI got this question during an interview.I'm obligated to ask this question of The Point Contact Diode in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits

During the manufacture of point contact diode, why is a relatively lar

1.	During the manufacture of point contact diode, why is a relatively large current passed from cat whisker to silicon crystal?(a) to control the amountof current flow(b) to form small region of p type material(c) to allow mechanical support for the sections(d) to form anode and cathode regionsI got this question during an interview.I'm obligated to ask this question of The Point Contact Diode in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits
Answer» Right option is (B) to form small REGION of p type material Easiest explanation: The behaviour of a contact diode is similar to that of a PN diode. It has a TUNGSTEN wire which is called as a cat whisker wire. This helps in pressing ONE SECTION to other.

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