jee-main 2019 Q17

jee-main · India · session1_12jan_shift1 Not Maths

An ideal battery of emf $4 V$ and resistance $R$ are connected in series in the primary circuit of a potentiometer of length $1 m$ and resistance $5 \Omega$. The value of $R$, to give a potential difference of $5 m \mathrm {~V}$ across $10 c m$ of potentiometer wire, is:
(1) $480 \Omega$
(2) $495 \Omega$
(3) $395 \Omega$
(4) $490 \Omega$

An ideal battery of emf $4 V$ and resistance $R$ are connected in series in the primary circuit of a potentiometer of length $1 m$ and resistance $5 \Omega$. The value of $R$, to give a potential difference of $5 m \mathrm {~V}$ across $10 c m$ of potentiometer wire, is:\\
(1) $480 \Omega$\\
(2) $495 \Omega$\\
(3) $395 \Omega$\\
(4) $490 \Omega$

Paper Questions

Q2 Q3 Q4 Q5 Q6 Q7 Q11 Q17 Q18 Q19 Q25 Q26 Q29 Q30 Q61 Q62 Q63 Q64 Q65 Q66