Current Electricity Ques 30

  1. Two batteries with emf $12 $ $V$ and $13 $ $V$ are connected in parallel across a load resistor of $10 $ $\Omega$. The internal resistances of the two batteries are $1 $ $\Omega$ and $2 $ $\Omega$, respectively. The voltage across the load lies between

(a) $11.7 $ $V$ and $11.8 $ $V$

(b) $11.6 $ $V$ and $11.7 $ $V$

(c) $11.5 $ $V$ and $11.6 $ $V$

(d) $11.4 $ $V$ and $11.5 $ $V$

Show Answer

Answer:

Correct Answer: 30.(c)

Solution:

Formula:

Grouping of Cells:

Voltage across load $=I R=(\frac{37}{32}) \quad(10)=11.56 $ $V$



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