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Experiment to Verify Ohm's Law)

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Experiment to Verify Ohm's Law)      CHAPTER - 12  'ELECTRICITY'   (Experiment to Verify Ohm's Law)  ************************************ Dependence of Potential Difference Across a Resistor on the Current  Passing through it and determine its resistance.  Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance. Also plotting a graph between V and I Potential difference is defined as the work done to move a unit charge from one point to the other. The SI unit of potential difference is volt. Electromotive force is defined as the electric potential produced by either an electrochemical cell or by changing the magnetic field. Below is an experiment to study the dependence of the potential difference across a resistor with current-carrying I. Table of Contents: * Aim * Theory * Materials Required * Circuit Diagram * Procedure * Observation Table *...
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Determination of Focal Length of Concave Mirror and Convex Lens

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Determination of Focal Length of Concave Mirror and Convex Lens Before getting started with the experiment, it is important to understand a few terms that are used in a concave mirror and convex lens: Centre of curvature: For a curved mirror, the centre of curvature, C can be defined as the centre of a hollow glass sphere of which a curved mirror is a part. Radius of curvature: For a curved mirror, the radius of curvature, R can be defined as the radius of the hollow glass sphere of a spherical mirror is part. Principal axis: Principal axis is defined as the imaginary line passing through the pole and centre of curvature of the spherical mirror. Principal focus: Principal focus is defined as a point at which the reflected rays meet or appear to meet for the spherical mirror.  For a concave mirror, the principal focus is in the front and  For a convex mirror, the principal focus is at the behind. Below is an experiment to determine the focal length of a concave m...
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Tracing Path of a Ray of Light Passing Through a Glass Slab

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Tracing Path of a Ray of Light Passing Through a Glass Slab Refraction is the property of light due to which it bends its path while travelling from one medium to another. The law of refraction is also known as Snell’s law which states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to constant. Below is an experiment to trace the path of a light ray passing through the rectangular glass slab. Table of Contents: Aim Theory Materials Required Procedure7 Ruay Diagram Observation Table Conclusion Precautions Sources of Error Viva Questions Aim To trace the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, and angle of emergence, and interpret the result. Theory What are the laws of refraction ? Following are the laws of refraction: (I) The incident ray, the normal at the point of incidence, and the refracted ray lie in the s...
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