The ammeter reading for the silicon diode in the given circuit is:

1.	\(0\)	2.	\(15~\text{mA}\)
3.	\(11.5~\text{mA}\)	4.	\(13.5~\text{mA}\)

The logic circuit shown above is equivalent to :

1.
2.
3.
4.

Zener breakdown occurs in a \(\mathrm{p\text{-}n}\) junction having \(\mathrm{p}\) and \(\mathrm{n}\) both:

A \(5~\text{V}\) battery is connected across the points \(X\) and \(Y.\) Assume \(D_1\) and \(D_2\) to be normal silicon diodes. Find the current supplied by the battery if the \(+\text{ve}\) terminal of the battery is connected to point \(X. \) [Given: Barrier potential of Silicon = \(0.7~\text{V}\)] 

 
1. \(0.5~\text{A}\)
2. \(1.5~\text{A}\)
3. \(0.86~\text{A}\)
4. \(0.43~\text{A}\)

Identify the correct output signal \(Y\) in the given combination of gates (as shown) for the given inputs \(A\) and \(B\) 
                        

1.
2.
3.
4.	None of the above

Identify the operation performed by the circuit given below:

1. \(\text{OR}\)
2. \(\text{NOT}\)
3. \(\text{NAND}\)
4. \(\text{AND}\)

Draw the output signal \(Y\) in the given combination of gates :

1.
2.
3.
4.

The Zener diode has a voltage, \(V_z=30~\text{V}.\) The current passing through the diode for the following circuit is:

The forward-biased diode connection is:

1.		2.
3.		4.

The temperature dependence of resistances of \(\mathrm{Cu}\) and undoped \(\mathrm{Si}\) in the temperature range \(300\text-400~\text{K}\), is best described by: