Question:
To measure the internal resistance of a battery potentiometer is used For R = 10Ω , the balance point is observed at l= 500 cm and for R = 1 Ω the balance point is observed at l = 400 cm. The internal resistance of the battery is approximately :
(1) 0.2 Ω 
(2) 0.4 Ω
(3) 0.1 Ω 
(4) 0.3 Ω
                                                      JEE -2024
Solution:                
To measure the internal resistance of a battery potentiometer is used For R = 10Ω , the balance point is observed at l= 500 cm and for R = 1 Ω the balance point is observed at l = 400 cm. The internal resistance of the battery is approximately : (1) 0.2 Ω (2) 0.4 Ω (3) 0.1 Ω (4) 0.3 Ω JEE -2024

Bhautik Study is a branch of knowledge that offers comprehensive solutions to a wide range of questions, aiding in preparation for exams such as JEE, NEET, CUET and NDA.