POTENTIO METER
Current Electricity

268345 A potentiometer wire of \(10 \mathrm{~m}\) legnth and 20 \(0 \mathrm{hm}\) resistance is connected in series with a resistance \(R\) ohms and a battery of emf \(2 \mathrm{~V}\), negligible internal resistance, Potential gradient on the wire is 0.16 millivolt / centimetre then \(R\) is ...ohms

1 \(50 \Omega\)
2 \(60 \Omega\)
3 \(230 \Omega\)
4 \(46 \Omega\)
Current Electricity

268408 In a potentiometer the balance length with standard cadmium cell is \(509 \mathrm{~cm}\). The emf of a cell which when connected in the place of the standard cell gave a balancelength of 750 \(\mathrm{cm}\) is (emf of standard cell is \(1.018 \mathrm{~V}\) )

1 \(1.5 \mathrm{~V}\)
2 \(0.5 \mathrm{~V}\)
3 \(1.08 \mathrm{~V}\)
4 \(1.2 \mathrm{~V}\)
Current Electricity

268409 Two cells of emf's \(E_{1}\) and \(E_{2}\) when placed in series produce null deflection at a distance of \(204 \mathrm{~cm}\) in a potentio meter. W hen one cell is reversed they produce null deflection at 36 \(\mathrm{cm}\) if \(E_{1} 1.4 v\) then \(E_{2}=\)

1 \(0.98 \bigvee\)
2 \(2.47 \mathrm{~V}\)
3 \(0.098 \mathrm{~V}\)
4 \(98.8 \mathrm{~V}\)
Current Electricity

268410 When 6 identical cells of no internal resistance are connected in series in the second arycircuit of a poetntio meter, the balancing length is \(I\). If two of them are wrongly connected the balancing length becomes

1 \(\frac{1}{4}\)
2 \(\frac{1}{3}\)
3 1
4 \(\frac{2}{3}\)
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Current Electricity

268345 A potentiometer wire of \(10 \mathrm{~m}\) legnth and 20 \(0 \mathrm{hm}\) resistance is connected in series with a resistance \(R\) ohms and a battery of emf \(2 \mathrm{~V}\), negligible internal resistance, Potential gradient on the wire is 0.16 millivolt / centimetre then \(R\) is ...ohms

1 \(50 \Omega\)
2 \(60 \Omega\)
3 \(230 \Omega\)
4 \(46 \Omega\)
Current Electricity

268408 In a potentiometer the balance length with standard cadmium cell is \(509 \mathrm{~cm}\). The emf of a cell which when connected in the place of the standard cell gave a balancelength of 750 \(\mathrm{cm}\) is (emf of standard cell is \(1.018 \mathrm{~V}\) )

1 \(1.5 \mathrm{~V}\)
2 \(0.5 \mathrm{~V}\)
3 \(1.08 \mathrm{~V}\)
4 \(1.2 \mathrm{~V}\)
Current Electricity

268409 Two cells of emf's \(E_{1}\) and \(E_{2}\) when placed in series produce null deflection at a distance of \(204 \mathrm{~cm}\) in a potentio meter. W hen one cell is reversed they produce null deflection at 36 \(\mathrm{cm}\) if \(E_{1} 1.4 v\) then \(E_{2}=\)

1 \(0.98 \bigvee\)
2 \(2.47 \mathrm{~V}\)
3 \(0.098 \mathrm{~V}\)
4 \(98.8 \mathrm{~V}\)
Current Electricity

268410 When 6 identical cells of no internal resistance are connected in series in the second arycircuit of a poetntio meter, the balancing length is \(I\). If two of them are wrongly connected the balancing length becomes

1 \(\frac{1}{4}\)
2 \(\frac{1}{3}\)
3 1
4 \(\frac{2}{3}\)
Current Electricity

268345 A potentiometer wire of \(10 \mathrm{~m}\) legnth and 20 \(0 \mathrm{hm}\) resistance is connected in series with a resistance \(R\) ohms and a battery of emf \(2 \mathrm{~V}\), negligible internal resistance, Potential gradient on the wire is 0.16 millivolt / centimetre then \(R\) is ...ohms

1 \(50 \Omega\)
2 \(60 \Omega\)
3 \(230 \Omega\)
4 \(46 \Omega\)
Current Electricity

268408 In a potentiometer the balance length with standard cadmium cell is \(509 \mathrm{~cm}\). The emf of a cell which when connected in the place of the standard cell gave a balancelength of 750 \(\mathrm{cm}\) is (emf of standard cell is \(1.018 \mathrm{~V}\) )

1 \(1.5 \mathrm{~V}\)
2 \(0.5 \mathrm{~V}\)
3 \(1.08 \mathrm{~V}\)
4 \(1.2 \mathrm{~V}\)
Current Electricity

268409 Two cells of emf's \(E_{1}\) and \(E_{2}\) when placed in series produce null deflection at a distance of \(204 \mathrm{~cm}\) in a potentio meter. W hen one cell is reversed they produce null deflection at 36 \(\mathrm{cm}\) if \(E_{1} 1.4 v\) then \(E_{2}=\)

1 \(0.98 \bigvee\)
2 \(2.47 \mathrm{~V}\)
3 \(0.098 \mathrm{~V}\)
4 \(98.8 \mathrm{~V}\)
Current Electricity

268410 When 6 identical cells of no internal resistance are connected in series in the second arycircuit of a poetntio meter, the balancing length is \(I\). If two of them are wrongly connected the balancing length becomes

1 \(\frac{1}{4}\)
2 \(\frac{1}{3}\)
3 1
4 \(\frac{2}{3}\)
Current Electricity

268345 A potentiometer wire of \(10 \mathrm{~m}\) legnth and 20 \(0 \mathrm{hm}\) resistance is connected in series with a resistance \(R\) ohms and a battery of emf \(2 \mathrm{~V}\), negligible internal resistance, Potential gradient on the wire is 0.16 millivolt / centimetre then \(R\) is ...ohms

1 \(50 \Omega\)
2 \(60 \Omega\)
3 \(230 \Omega\)
4 \(46 \Omega\)
Current Electricity

268408 In a potentiometer the balance length with standard cadmium cell is \(509 \mathrm{~cm}\). The emf of a cell which when connected in the place of the standard cell gave a balancelength of 750 \(\mathrm{cm}\) is (emf of standard cell is \(1.018 \mathrm{~V}\) )

1 \(1.5 \mathrm{~V}\)
2 \(0.5 \mathrm{~V}\)
3 \(1.08 \mathrm{~V}\)
4 \(1.2 \mathrm{~V}\)
Current Electricity

268409 Two cells of emf's \(E_{1}\) and \(E_{2}\) when placed in series produce null deflection at a distance of \(204 \mathrm{~cm}\) in a potentio meter. W hen one cell is reversed they produce null deflection at 36 \(\mathrm{cm}\) if \(E_{1} 1.4 v\) then \(E_{2}=\)

1 \(0.98 \bigvee\)
2 \(2.47 \mathrm{~V}\)
3 \(0.098 \mathrm{~V}\)
4 \(98.8 \mathrm{~V}\)
Current Electricity

268410 When 6 identical cells of no internal resistance are connected in series in the second arycircuit of a poetntio meter, the balancing length is \(I\). If two of them are wrongly connected the balancing length becomes

1 \(\frac{1}{4}\)
2 \(\frac{1}{3}\)
3 1
4 \(\frac{2}{3}\)