NCERT Physics Class 12 Exemplar Ch 14 Semiconductor Electronics Materials Devices and Simple Circuits Part 7
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Q 38 Consider a box with three terminals on top of it as shown in Fig.(a):
Consider a Box with Three Terminals on Top of It
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 in Fig. (b).
A Student Performs an Experiment
The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit.
The graphs are
1. When A is positive and B is negative
A is Positive and B is Negative
2. When A is negative and B is positive
A is Negative and B is Positive
3. When B is negative and C is positive
B is Negative and C is Positive
4. When B is positive and C is negative
B is Positive and C is Negative
5. When A is positive and C is negative
A is Positive and C is Negative
6. When A is negative and C is positive
A is Negative and C is Positive
From these graphs of current – voltage characteristic shown in Fig. (c) to (h), determine the arrangement of components between A, B and C.
Ans:
Graphs of Current – Voltage Characteristic