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• To determine the resistance per unit length of a given wire by plotting a graph of Potential difference vs Current. • To determine resistance of a given wire using metre bridge& hence determine the specific resistance of the material. • To verify law of combination of resistance using metre bridge. • To compare EMF of two given Primary cells using a Potentiometer. • To determine the internal resistance of given primary cell using a Potentiometer. • To find the value of v(Image Distance) for different values of u(Object Distance) of a concave mirror & to find the focal length by plotting graph between u &v or 1/u & 1/v. • To find the focal length of a convex lens by plotting graph between u &v or 1/u & 1/v.

• To find the focal length of a Convex Mirror using Convex lens. • To find the focal length of a Concave lens using Convex lens. • To determine the angle of minimum deviation for a given glass prism by plotting a graph between the angle of incidence & the angle of deviation. • To draw the I-V Characteristic curve of a p-n junction diode in forward bias & reverse bias & to determine its static & dynamic resistance. • To draw the I-V Characteristic curve of the given Zener diode in reverse bias. • To study the characteristic of a Common Emitter npn or pnp transistor & to find out values of current & voltage gains.

Physics is one of the most important subjects in Class 12. As the CBSE exam approaches, students get busy preparing for different subjects. But an essential part of CBSE exam is the practical exams which consist of 30 marks. The king of fighters 2002 unlimited match ps2 iso game download. Students must know all the experiments along with theorems, laws, and numerical to understand all the concepts of 12th standard physics in a detailed way.

Two experiments (8 + 8 marks) are asked from each section in the practical exam. The experiment records and activities consist of 6 marks, the project has 3 marks and viva on the experiment consist of 5 marks. The Physics Practicals For Class 12 CBSE is given here so that students can understand the experiments in a better way. Students are suggested to study the theory and law behind the experiment properly before performing the experiment. A Set up the circuit shown.

The length of Eureka wire acts as the resistance in the circuit. B By adjusting the power supply, you can vary the p.d. Across the Eureka wire. The ammeter will show corresponding values of the current through the wire. Keep the current small so that the temperature of the wire does not increase. (Adjust the rheostat at the beginning and then keep it constant.) Record a series of values of p.d. C Calculate the ratio p.d./current for each pair of values.

Comment on the result. D Draw a graph to represent the same data. From the graph, deduce a value for the ratio p.d./current. Important Steps in this experiment: 1 Students should collect pairs of results for the potential difference across the wire, and current through the wire. 2 A graph is then plotted of current against potential difference. It is a matter of taste whether current is plotted on the y-axis or the x-axis.

It normally depends on what the experimenter is trying to find out. The independent variable is normally the potential difference and so it could be plotted along the x-axis.

The resultant current, the dependent variable, would be plotted on the y-axis. This would show how the current varies with potential difference. However, the ratio p.d./current is important to us, and so the axes would have to be reversed if the ratio were needed from the slope of the graph. 3 Students should also calculate the ratio p.d./current for all pairs of results.