Calculation of Band Gap Energy (Four Probe Method)
Marks Allotted: 40
Time: 120 minutes
Demonstration
Learners are going to do a new experiment in this exam. In this experiment they have to take readings easily from a video and do some calculation and make a graph as directed later. Although the theory part is not important for the exam, we introduce the learners to the general idea of the theory in short (class XII level) and an outline idea of the apparatus used in this experiment.
Please watch the two videos as follows:
Video 1
Video 2
As an option we also refer to the official manual of the apparatus here. It is not important for the exam.
Work
Working Video
Your readings should be strictly as per the instruction. Any mistake is usual but manipulation is punishable. If some required value is not available in the video then use the nearest available value.
Readings to be taken against serial numbers given by the department
You have to make a graph with variables of the last two columns of the reading table.
Please name the PDF file (with at least 2 screenshots and your work) according to your University Roll Number and Your Name. Otherwise you may miss the marks given.
Physics TMSL 