An Exemplary Viva Voce (CBSE Class XII Physics Practical)

(Assuming that the student was assigned the experiment "To determine the internal resistance of a cell using potentiometer") Examiner (E): What was the experiment allotted to you? Students(S): Sir, I was assigned the experiment to determine the internal resistance of a primary cell using potentiometer. E: OK, Tell me the principle of a potentiometer S: … Continue reading An Exemplary Viva Voce (CBSE Class XII Physics Practical)

CBSE CLASS X CCE: QUESTIONS FOR SA 1

QUESTION: In a household electric circuit different appliances are connected in parallel to one another. Give two reasons.An electrician puts a fuse of rating 5A in that part of domestic electrical circuit in which an electrical heater of rating 1.5kW, 220V is operating. What is likely to happen in this case and why? What change, … Continue reading CBSE CLASS X CCE: QUESTIONS FOR SA 1