Which one of the following statements is not correct?
- A$A$ diode does not obey Ohm's law
- B$A$ $PN$ junction diode symbol shows an arrow identifying the direction of current (forward) flow
- CAn ideal diode is an open switch
- DAn ideal diode is an ideal one-way conductor
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In a semiconductor $p-n$ diode, the doping concentrations on $p$-side and $n$-side are $10^{15} \text{ atoms/cm}^3$ and $10^{18} \text{ atoms/cm}^3$, respectively. Which one of the following statements is true?
In the following circuit shown in the figure,three diodes are connected,each with a forward resistance of $40 \Omega$ and infinite backward resistance. The current through the $100 \Omega$ resistance is: (in $mA$)
Currents flowing in each of the following circuits $A$ and $B$ respectively are
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