jee-main 2025 Q13

jee-main · India · session2_02apr_shift1 Not Maths

Q13. To measure the internal resistance of a battery, potentiometer is used. For $\mathrm { R } = 10 \Omega$, the balance point is observed at $l = 500 \mathrm {~cm}$ and for $\mathrm { R } = 1 \Omega$ the balance point is observed at $l = 400 \mathrm {~cm}$. The internal resistance of the battery is approximately :
(1) $0.2 \Omega$
(2) $0.3 \Omega$
(3) $0.4 \Omega$
(4) $0.1 \Omega$

Q13. To measure the internal resistance of a battery, potentiometer is used. For $\mathrm { R } = 10 \Omega$, the balance point is observed at $l = 500 \mathrm {~cm}$ and for $\mathrm { R } = 1 \Omega$ the balance point is observed at $l = 400 \mathrm {~cm}$. The internal resistance of the battery is approximately :\\
(1) $0.2 \Omega$\\
(2) $0.3 \Omega$\\
(3) $0.4 \Omega$\\
(4) $0.1 \Omega$

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