Physics 12 Experiment 03
To determine the internal resistance of a given primary cell using potentiometer.



To determine the internal resistance of a given primary cell using potentiometer.



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…
Law of Combination of Resistances Using Metre Bridge – Viva Questions This post presents a carefully structured set of viva questions on the law of combination of resistances using a metre bridge. It helps students prepare confidently for CBSE physics practical viva voce by covering both series and parallel combinations in a clear, examiner-oriented manner….
To find the focal length of a Concave Mirror – Experiment. Aim To find the value of v for different values of u in case of a concave mirror and to find the focal length. Apparatus and Material Required Terms and Definitions Cartesian Sign Convention Principle If an object is at a distance \(u\) from the…
Aim To verify the laws of combination of resistances (series and parallel) using a metre bridge. Apparatus and Material Required Principle When two resistances \(R_1\) and \(R_2\) are connected in series, the resistance of the combination \(R_S\) is given by \[R_S = R_1 + R_2\] When these two resistances are connected in parallel, the resistance of…
Metre Bridge Experiment Viva Questions (FAQ) – CBSE Physics Practical This post provides a complete and exam-oriented collection of viva questions for the metre bridge experiment. These questions are frequently asked in CBSE physics practical examinations while performing the experiment to find the resistance of a given wire using a metre bridge. Experiment: To find…
Syllabus – Physics Practical Class 12 For more practical records of Physics Practical Class 12, Click here For Viva questions on Physics Practical Class 12, Click here Practical Students need to submit records of at least eight experiments (with four from each section), six activities (with three from each section) and one project at the…