I need help to solve this problem. Can anyone help me to solve this exercise? I can not really solve it. The source is Halliday.
Thanks in advance.
Prove that if a resistor of resistance r is inserted between points $a$ and $b$ of Figure 27.39 (attached figure), the current throug it is given by
$i = \frac{E(R_s  R_x)}{(R+2r)(R_s+R_x)+2R_sR_x}$
where $E$ is e.m.f. of the ideal battery and $R=R_1=R_2$
Assume that $R_0=0$
Thanks in advance.
Prove that if a resistor of resistance r is inserted between points $a$ and $b$ of Figure 27.39 (attached figure), the current throug it is given by
$i = \frac{E(R_s  R_x)}{(R+2r)(R_s+R_x)+2R_sR_x}$
where $E$ is e.m.f. of the ideal battery and $R=R_1=R_2$
Assume that $R_0=0$
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