357295
Two cells of emfs \(E_{1}\) and \(E_{2}\left(E_{1}>E_{2}\right)\) are connected as shown in figure.
When a potentiometer is connected between \(A\) and \(B\),
then the balancing length of the potentiometer wire is
\(300\,cm.\) On connecting the same potentiometer between
\(A\) and \(C\), the balancing length is \(100\,cm\). The ratio \({E_1}/{E_2}\) is
357297
A potentiometer \(PQ\) is set up to comapre two resistances as shown in the figure. The ammeter \(A\) in the circuit reads 1.0 \(A\) when two way key \({K_3}\) is open. The balance point is at a length cm from \(P\) when two way key \({K_3}\) is plugged in between 2 and 1, while the balance point is at a length \({l_2}\) \(cm\) from \(P\) when key \({K_3}\) is plugged in between 3 and 1. The ratio of the two resistance \(\frac{{{R_1}}}{{{R_2}}}\), is found to be -
357295
Two cells of emfs \(E_{1}\) and \(E_{2}\left(E_{1}>E_{2}\right)\) are connected as shown in figure.
When a potentiometer is connected between \(A\) and \(B\),
then the balancing length of the potentiometer wire is
\(300\,cm.\) On connecting the same potentiometer between
\(A\) and \(C\), the balancing length is \(100\,cm\). The ratio \({E_1}/{E_2}\) is
357297
A potentiometer \(PQ\) is set up to comapre two resistances as shown in the figure. The ammeter \(A\) in the circuit reads 1.0 \(A\) when two way key \({K_3}\) is open. The balance point is at a length cm from \(P\) when two way key \({K_3}\) is plugged in between 2 and 1, while the balance point is at a length \({l_2}\) \(cm\) from \(P\) when key \({K_3}\) is plugged in between 3 and 1. The ratio of the two resistance \(\frac{{{R_1}}}{{{R_2}}}\), is found to be -
357295
Two cells of emfs \(E_{1}\) and \(E_{2}\left(E_{1}>E_{2}\right)\) are connected as shown in figure.
When a potentiometer is connected between \(A\) and \(B\),
then the balancing length of the potentiometer wire is
\(300\,cm.\) On connecting the same potentiometer between
\(A\) and \(C\), the balancing length is \(100\,cm\). The ratio \({E_1}/{E_2}\) is
357297
A potentiometer \(PQ\) is set up to comapre two resistances as shown in the figure. The ammeter \(A\) in the circuit reads 1.0 \(A\) when two way key \({K_3}\) is open. The balance point is at a length cm from \(P\) when two way key \({K_3}\) is plugged in between 2 and 1, while the balance point is at a length \({l_2}\) \(cm\) from \(P\) when key \({K_3}\) is plugged in between 3 and 1. The ratio of the two resistance \(\frac{{{R_1}}}{{{R_2}}}\), is found to be -
357295
Two cells of emfs \(E_{1}\) and \(E_{2}\left(E_{1}>E_{2}\right)\) are connected as shown in figure.
When a potentiometer is connected between \(A\) and \(B\),
then the balancing length of the potentiometer wire is
\(300\,cm.\) On connecting the same potentiometer between
\(A\) and \(C\), the balancing length is \(100\,cm\). The ratio \({E_1}/{E_2}\) is
357297
A potentiometer \(PQ\) is set up to comapre two resistances as shown in the figure. The ammeter \(A\) in the circuit reads 1.0 \(A\) when two way key \({K_3}\) is open. The balance point is at a length cm from \(P\) when two way key \({K_3}\) is plugged in between 2 and 1, while the balance point is at a length \({l_2}\) \(cm\) from \(P\) when key \({K_3}\) is plugged in between 3 and 1. The ratio of the two resistance \(\frac{{{R_1}}}{{{R_2}}}\), is found to be -