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Study the Variation in Potential Drop
Aim To study the variation in potential drop with length of a wire for a steady current. Apparatus and Material Required Principle If a steady current is flowing through a wire with uniform cross section and constant resistance per unit length, potential drop \(V\) across two points of the wire is directly proportional to the length…
Prism Viva Questions – Minimum Angle of Deviation Meth
Prism – Viva Questions To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation A. Basic Understanding Q1. What is a prism? Answer: A prism is a transparent refracting medium with plane surfaces; therefore, it bends light by refraction. Q2. What is the…
Viva Questions – Conversion of Galvanometer into Voltmeter or Ammeter
Conversion of Galvanometer into Voltmeter or Ammeter – Viva Questions Experiment Aim The aim of this experiment is to convert a given galvanometer of known resistance and figure of merit into a voltmeter or an ammeter of desired range and then verify its performance. Apparatus Used This experiment uses a moving coil galvanometer, suitable resistances,…
Assemble the Electrical Components – Activity
Assemble the Electrical Components – Activity to be done by Class 12 Physics Students Aim To assemble the components of a given electrical circuit. Apparatus and Material Required Resistor, ammeter, (0-1.5A) voltmeter (0-5V ), battery, one way key, rheostat, sand paper, connecting wires. Procedure Results The components of the electrical circuit were assembled. Precautions Discussion Draw…
Resistance of a Galvanometer by Half Deflection Method
Aim To determine the resistance of a galvanometer by half-deflection method and to find its figure of merit Apparatus and Material Required Principle Moving Coil Galvanometer is a sensitive electrical device used to detect current. It works on the principle that “a current carrying coil placed in a uniform magnetic field experiences a torque”. When a…
Convex Lens Viva Questions – Finding Focal Length
Convex Lens Viva Questions – Finding Focal Length using Graphs To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v A. Basic Understanding Q1. What is a convex lens? Answer: A convex lens is thicker at the centre; therefore, it converges parallel light rays….