POTENTIO METER
Current Electricity

268340 A potentiometer having a wire of \(4 \mathrm{~m}\) length is connected to the terminals of a battery with a steady voltage. A leclanche cell has a null point at \(1 \mathrm{~m}\). If thelength of the potentiometer wire is increased by \(1 \mathrm{~m}\), The position of the null point is

1 \(1.5 \mathrm{~m}\)
2 \(1.25 \mathrm{~m}\)
3 \(10.05 \mathrm{~m}\)
4 \(1.31 \mathrm{~m}\)
Current Electricity

268341 Theemf of a battery \(A\) is balanced by a length of \(80 \mathrm{~cm}\) on a potentio meter wire. The emf of a standard cell \(1 \mathrm{v}\) is balanced by \(50 \mathrm{~cm}\). The emf of \(A\) is

1 \(2 \mathrm{~V}\)
2 \(1.4 \mathrm{~V}\)
3 \(1.5 \mathrm{~V}\)
4 \(1.6 \mathrm{~V}\)
Current Electricity

268342 When 6 identical cells of no internal resistance are connected in series in the secondary circuit of a potentio meter, the balancing length is ' \(l\) ', balancing length becomes \(I / 3\) when some cells are connected wrongly, the number of cells conected wrongly are

1 1
2 3
3 2
4 4
Current Electricity

268343 In a potentiometer experiment, the balancing length with a cell is \(560 \mathrm{~cm}\). When an external resistance of \(100 \mathrm{hms}\) is connected in parallel to the cell the balancing length changs by \(60 \mathrm{~cm}\). Theinternal resistance of thecell in ohm is

1 3.6
2 2.4
3 1.2
4 0.6
Current Electricity

268344 The resistivity of a potentio meter wire is, if the area of cross section of the wire is \(4 \mathrm{~cm}^{2}\). The current flowing in the circuit is 1A, the poetntial gradient is \(7.5 \mathrm{v} / \mathrm{m}\)

1 \(3 \times 10^{-3} \Omega-m\)
2 \(2 \times 10^{-6} \Omega-m\)
3 \(4 \times 10^{-6} \Omega-\mathrm{m}\)
4 \(5 \times 10^{-4} \Omega-m\)
Current Electricity

268340 A potentiometer having a wire of \(4 \mathrm{~m}\) length is connected to the terminals of a battery with a steady voltage. A leclanche cell has a null point at \(1 \mathrm{~m}\). If thelength of the potentiometer wire is increased by \(1 \mathrm{~m}\), The position of the null point is

1 \(1.5 \mathrm{~m}\)
2 \(1.25 \mathrm{~m}\)
3 \(10.05 \mathrm{~m}\)
4 \(1.31 \mathrm{~m}\)
Current Electricity

268341 Theemf of a battery \(A\) is balanced by a length of \(80 \mathrm{~cm}\) on a potentio meter wire. The emf of a standard cell \(1 \mathrm{v}\) is balanced by \(50 \mathrm{~cm}\). The emf of \(A\) is

1 \(2 \mathrm{~V}\)
2 \(1.4 \mathrm{~V}\)
3 \(1.5 \mathrm{~V}\)
4 \(1.6 \mathrm{~V}\)
Current Electricity

268342 When 6 identical cells of no internal resistance are connected in series in the secondary circuit of a potentio meter, the balancing length is ' \(l\) ', balancing length becomes \(I / 3\) when some cells are connected wrongly, the number of cells conected wrongly are

1 1
2 3
3 2
4 4
Current Electricity

268343 In a potentiometer experiment, the balancing length with a cell is \(560 \mathrm{~cm}\). When an external resistance of \(100 \mathrm{hms}\) is connected in parallel to the cell the balancing length changs by \(60 \mathrm{~cm}\). Theinternal resistance of thecell in ohm is

1 3.6
2 2.4
3 1.2
4 0.6
Current Electricity

268344 The resistivity of a potentio meter wire is, if the area of cross section of the wire is \(4 \mathrm{~cm}^{2}\). The current flowing in the circuit is 1A, the poetntial gradient is \(7.5 \mathrm{v} / \mathrm{m}\)

1 \(3 \times 10^{-3} \Omega-m\)
2 \(2 \times 10^{-6} \Omega-m\)
3 \(4 \times 10^{-6} \Omega-\mathrm{m}\)
4 \(5 \times 10^{-4} \Omega-m\)
Current Electricity

268340 A potentiometer having a wire of \(4 \mathrm{~m}\) length is connected to the terminals of a battery with a steady voltage. A leclanche cell has a null point at \(1 \mathrm{~m}\). If thelength of the potentiometer wire is increased by \(1 \mathrm{~m}\), The position of the null point is

1 \(1.5 \mathrm{~m}\)
2 \(1.25 \mathrm{~m}\)
3 \(10.05 \mathrm{~m}\)
4 \(1.31 \mathrm{~m}\)
Current Electricity

268341 Theemf of a battery \(A\) is balanced by a length of \(80 \mathrm{~cm}\) on a potentio meter wire. The emf of a standard cell \(1 \mathrm{v}\) is balanced by \(50 \mathrm{~cm}\). The emf of \(A\) is

1 \(2 \mathrm{~V}\)
2 \(1.4 \mathrm{~V}\)
3 \(1.5 \mathrm{~V}\)
4 \(1.6 \mathrm{~V}\)
Current Electricity

268342 When 6 identical cells of no internal resistance are connected in series in the secondary circuit of a potentio meter, the balancing length is ' \(l\) ', balancing length becomes \(I / 3\) when some cells are connected wrongly, the number of cells conected wrongly are

1 1
2 3
3 2
4 4
Current Electricity

268343 In a potentiometer experiment, the balancing length with a cell is \(560 \mathrm{~cm}\). When an external resistance of \(100 \mathrm{hms}\) is connected in parallel to the cell the balancing length changs by \(60 \mathrm{~cm}\). Theinternal resistance of thecell in ohm is

1 3.6
2 2.4
3 1.2
4 0.6
Current Electricity

268344 The resistivity of a potentio meter wire is, if the area of cross section of the wire is \(4 \mathrm{~cm}^{2}\). The current flowing in the circuit is 1A, the poetntial gradient is \(7.5 \mathrm{v} / \mathrm{m}\)

1 \(3 \times 10^{-3} \Omega-m\)
2 \(2 \times 10^{-6} \Omega-m\)
3 \(4 \times 10^{-6} \Omega-\mathrm{m}\)
4 \(5 \times 10^{-4} \Omega-m\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Current Electricity

268340 A potentiometer having a wire of \(4 \mathrm{~m}\) length is connected to the terminals of a battery with a steady voltage. A leclanche cell has a null point at \(1 \mathrm{~m}\). If thelength of the potentiometer wire is increased by \(1 \mathrm{~m}\), The position of the null point is

1 \(1.5 \mathrm{~m}\)
2 \(1.25 \mathrm{~m}\)
3 \(10.05 \mathrm{~m}\)
4 \(1.31 \mathrm{~m}\)
Current Electricity

268341 Theemf of a battery \(A\) is balanced by a length of \(80 \mathrm{~cm}\) on a potentio meter wire. The emf of a standard cell \(1 \mathrm{v}\) is balanced by \(50 \mathrm{~cm}\). The emf of \(A\) is

1 \(2 \mathrm{~V}\)
2 \(1.4 \mathrm{~V}\)
3 \(1.5 \mathrm{~V}\)
4 \(1.6 \mathrm{~V}\)
Current Electricity

268342 When 6 identical cells of no internal resistance are connected in series in the secondary circuit of a potentio meter, the balancing length is ' \(l\) ', balancing length becomes \(I / 3\) when some cells are connected wrongly, the number of cells conected wrongly are

1 1
2 3
3 2
4 4
Current Electricity

268343 In a potentiometer experiment, the balancing length with a cell is \(560 \mathrm{~cm}\). When an external resistance of \(100 \mathrm{hms}\) is connected in parallel to the cell the balancing length changs by \(60 \mathrm{~cm}\). Theinternal resistance of thecell in ohm is

1 3.6
2 2.4
3 1.2
4 0.6
Current Electricity

268344 The resistivity of a potentio meter wire is, if the area of cross section of the wire is \(4 \mathrm{~cm}^{2}\). The current flowing in the circuit is 1A, the poetntial gradient is \(7.5 \mathrm{v} / \mathrm{m}\)

1 \(3 \times 10^{-3} \Omega-m\)
2 \(2 \times 10^{-6} \Omega-m\)
3 \(4 \times 10^{-6} \Omega-\mathrm{m}\)
4 \(5 \times 10^{-4} \Omega-m\)
Current Electricity

268340 A potentiometer having a wire of \(4 \mathrm{~m}\) length is connected to the terminals of a battery with a steady voltage. A leclanche cell has a null point at \(1 \mathrm{~m}\). If thelength of the potentiometer wire is increased by \(1 \mathrm{~m}\), The position of the null point is

1 \(1.5 \mathrm{~m}\)
2 \(1.25 \mathrm{~m}\)
3 \(10.05 \mathrm{~m}\)
4 \(1.31 \mathrm{~m}\)
Current Electricity

268341 Theemf of a battery \(A\) is balanced by a length of \(80 \mathrm{~cm}\) on a potentio meter wire. The emf of a standard cell \(1 \mathrm{v}\) is balanced by \(50 \mathrm{~cm}\). The emf of \(A\) is

1 \(2 \mathrm{~V}\)
2 \(1.4 \mathrm{~V}\)
3 \(1.5 \mathrm{~V}\)
4 \(1.6 \mathrm{~V}\)
Current Electricity

268342 When 6 identical cells of no internal resistance are connected in series in the secondary circuit of a potentio meter, the balancing length is ' \(l\) ', balancing length becomes \(I / 3\) when some cells are connected wrongly, the number of cells conected wrongly are

1 1
2 3
3 2
4 4
Current Electricity

268343 In a potentiometer experiment, the balancing length with a cell is \(560 \mathrm{~cm}\). When an external resistance of \(100 \mathrm{hms}\) is connected in parallel to the cell the balancing length changs by \(60 \mathrm{~cm}\). Theinternal resistance of thecell in ohm is

1 3.6
2 2.4
3 1.2
4 0.6
Current Electricity

268344 The resistivity of a potentio meter wire is, if the area of cross section of the wire is \(4 \mathrm{~cm}^{2}\). The current flowing in the circuit is 1A, the poetntial gradient is \(7.5 \mathrm{v} / \mathrm{m}\)

1 \(3 \times 10^{-3} \Omega-m\)
2 \(2 \times 10^{-6} \Omega-m\)
3 \(4 \times 10^{-6} \Omega-\mathrm{m}\)
4 \(5 \times 10^{-4} \Omega-m\)