NCERT Solutions for Chapter: Semiconductor Electronics: Materials, Devices and Simple Circuits, Exercise 4: LA

Consider a box with three terminals on top of it as shown in figure

Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement. A student performs an experiment in which any two of these three terminals are connected in the circuit shown.

The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.

The graphs when $\mathrm{A}$ is positive and $\mathrm{B}$ is negative is

From this graph of current – voltage characteristic shown in Fig. determine the arrangement of components between $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

Consider a box with three terminals on top of it as shown in figure

Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement.

A student performs an experiment in which any two of these three terminals are connected in the circuit shown.

The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.

The graphs when $\mathrm{A}$ is negative and $\mathrm{B}$ is positive is

From these graphs of current – voltage characteristic shown in figure, determine the arrangement of components between $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

Consider a box with three terminals on top of it as shown in figure

Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement. A student performs an experiment in which any two of these three terminals are connected in the circuit shown.

The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.

The graphs when $\mathrm{B}$ is negative and $\mathrm{C}$ is positive

From these graphs of current – voltage characteristic shown determine the arrangement of components between $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

Consider a box with three terminals on top of it as shown in figure

Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement. A student performs an experiment in which any two of these three terminals are connected in the circuit shown

The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.

The graphs when $\mathrm{B}$ is positive and $\mathrm{C}$ is negative

From these graphs of current – voltage characteristic shown in figure determine the arrangement of components between $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

Consider a box with three terminals on top of it as shown in figure

Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement.

A student performs an experiment in which any two of these three terminals are connected in the circuit shown.

The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.

The graphs when $\mathrm{A}$ is positive and $\mathrm{C}$ is negative

From these graphs of current – voltage characteristic shown in Fig. determine the arrangement of components between $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

Consider a box with three terminals on top of it as shown in figure

Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement.

A student performs an experiment in which any two of these three terminals are connected in the circuit shown.

The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.

The graphs when $\mathrm{A}$ is negative and $\mathrm{C}$ is positive

From these graphs of current – voltage characteristic shown in Fig. determine the arrangement of components between $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

For the transistor circuit shown in figure, evaluate $V_E, R_B, R_E$ given $I_C= 1 \mathrm{mA}, V_{CE}= 3\mathrm{V}, V_{BE}= 0.5 \mathrm{V}$ and $V_{CC}= 12 \mathrm{V}, \beta = 100.$

In the circuit shown in figure, find the value of ${\mathrm{R}}_{\mathrm{C}}$.