Potentiometer

JEE Main Physics · Current Electricity · 6 questions, latest first

• In the potentiometer, when the cell in the secondary circuit is shunted with 4 Ω resistance, the balance is obtained at the…202628 January, Shift 1 · Q27
• The total length of potentiometer wire AB is 50 cm in the arrangement as shown in figure. If P is the point where the…202621 January, Shift 2 · Q38
• To measure the internal resistance of a battery, potentiometer is used. For R=10 Ω, the balance point is observed at l=500 cm and…20244 April, Shift 1 · Q50
• In an experiment to find emf of a cell using potentiometer, the length of null point for a cell of emf 1.5 V is found to be 60…20231 February, Shift 1 · Q22
• With the help of potentiometer,we can determine the value of emf of a given cell. The sensitivity of the potentiometer is…202329 January, Shift 2 · Q11
• A null point is found at 200 cm in potentiometer when cell in secondary circuit is shunted by 5 Ω. When a resistance of 15 Ω is…202329 January, Shift 2 · Q25