1, A zener diode and pn junction diode work almost same in reverse-biased condit

Question

1, A zener diode and pn junction diode work almost same in reverse-biased conditions. 2, An n-channel enhanced mode MOSFET has n dropped source and drain. 3, In an n-channel enhanced mode MOSFET, the drain current flowing into the device is positive when the gate-source voltage is zero 4. A pn junction diode is reverse-biased when 5V of an external voltage is applied to the p-side of the diode while the n-side is grounded 5, If two pn junction diode are connected in series pointing each other, at least 1.4 V must be applied to turn both diode on

Explanation / Answer

1.F ,in reverse bias Zener has more voltage drop (generally 5.1V) than pn diode (0.7V) 2.T,n channel is formed due to diffusion of electrons from source to drain for which source and drain are doped n type 3.F when gate voltage is zero no channel is formed so zero current 4.F.In reverse bias P side is given less voltage than n side 5.T because each of it requires atleast 0.7V to turn it on so in series it requires 1.4v Thanx,Please rate..:)

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