Moving Coil Galvanometer & Its Applications
PHXII04:MOVING CHARGES AND MAGNETISM

362938 A moving coil galvanometer is converted into an ammeter of range 0 to \(5\;mA\). The galvanometer resistance is \(90 \Omega\) and the shunt resistance has a value of \(10 \Omega\). If there are 50 divisions in the galvanometer turned ammeter on either sides of zero, its current sensitivity is

1 \(2 \times {10^4}\;A/div\)
2 \(1 \times {10^5}\;div/A\)
3 \(2 \times {10^5}\;div/A\)
4 \(1 \times {10^5}\;A/div\)
PHXII04:MOVING CHARGES AND MAGNETISM

362939 The resistance of an ammeter is \(13 \Omega\) and its scale is graduated for a current upto 100\(A\). After an additional shunt has been connected to this ammeter it becomes possible to measure current upto 750\(A\) by this meter. The value of shunt resistance is

1 \(2 \Omega\)
2 \(20 \Omega\)
3 \(2 k \Omega\)
4 \(0.2 \Omega\)
PHXII04:MOVING CHARGES AND MAGNETISM

362940 An ammeter has a resistance of \(R\) ohm and a range of ' \(i\) ' ampere. The value of resistance used in parallel, to convert into an ammeter of range 'ni' ampere is

1 \(nR\)
2 \((n - 1)R\)
3 \(R / n\)
4 \(R/n - 1\)
PHXII04:MOVING CHARGES AND MAGNETISM

362941 A galvanometer of resistance \(100\,\Omega \) when connected in series with \(400\,\Omega \) measures avoltage of upto \(10\,V.\) The value of resistance required to convert the galvanometer into ammeter to read upto \(10\,A\) is \(x \times {10^{ - 2}}\,\Omega .\) The value of \(x\) is

1 800
2 20
3 200
4 2
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PHXII04:MOVING CHARGES AND MAGNETISM

362938 A moving coil galvanometer is converted into an ammeter of range 0 to \(5\;mA\). The galvanometer resistance is \(90 \Omega\) and the shunt resistance has a value of \(10 \Omega\). If there are 50 divisions in the galvanometer turned ammeter on either sides of zero, its current sensitivity is

1 \(2 \times {10^4}\;A/div\)
2 \(1 \times {10^5}\;div/A\)
3 \(2 \times {10^5}\;div/A\)
4 \(1 \times {10^5}\;A/div\)
PHXII04:MOVING CHARGES AND MAGNETISM

362939 The resistance of an ammeter is \(13 \Omega\) and its scale is graduated for a current upto 100\(A\). After an additional shunt has been connected to this ammeter it becomes possible to measure current upto 750\(A\) by this meter. The value of shunt resistance is

1 \(2 \Omega\)
2 \(20 \Omega\)
3 \(2 k \Omega\)
4 \(0.2 \Omega\)
PHXII04:MOVING CHARGES AND MAGNETISM

362940 An ammeter has a resistance of \(R\) ohm and a range of ' \(i\) ' ampere. The value of resistance used in parallel, to convert into an ammeter of range 'ni' ampere is

1 \(nR\)
2 \((n - 1)R\)
3 \(R / n\)
4 \(R/n - 1\)
PHXII04:MOVING CHARGES AND MAGNETISM

362941 A galvanometer of resistance \(100\,\Omega \) when connected in series with \(400\,\Omega \) measures avoltage of upto \(10\,V.\) The value of resistance required to convert the galvanometer into ammeter to read upto \(10\,A\) is \(x \times {10^{ - 2}}\,\Omega .\) The value of \(x\) is

1 800
2 20
3 200
4 2
PHXII04:MOVING CHARGES AND MAGNETISM

362938 A moving coil galvanometer is converted into an ammeter of range 0 to \(5\;mA\). The galvanometer resistance is \(90 \Omega\) and the shunt resistance has a value of \(10 \Omega\). If there are 50 divisions in the galvanometer turned ammeter on either sides of zero, its current sensitivity is

1 \(2 \times {10^4}\;A/div\)
2 \(1 \times {10^5}\;div/A\)
3 \(2 \times {10^5}\;div/A\)
4 \(1 \times {10^5}\;A/div\)
PHXII04:MOVING CHARGES AND MAGNETISM

362939 The resistance of an ammeter is \(13 \Omega\) and its scale is graduated for a current upto 100\(A\). After an additional shunt has been connected to this ammeter it becomes possible to measure current upto 750\(A\) by this meter. The value of shunt resistance is

1 \(2 \Omega\)
2 \(20 \Omega\)
3 \(2 k \Omega\)
4 \(0.2 \Omega\)
PHXII04:MOVING CHARGES AND MAGNETISM

362940 An ammeter has a resistance of \(R\) ohm and a range of ' \(i\) ' ampere. The value of resistance used in parallel, to convert into an ammeter of range 'ni' ampere is

1 \(nR\)
2 \((n - 1)R\)
3 \(R / n\)
4 \(R/n - 1\)
PHXII04:MOVING CHARGES AND MAGNETISM

362941 A galvanometer of resistance \(100\,\Omega \) when connected in series with \(400\,\Omega \) measures avoltage of upto \(10\,V.\) The value of resistance required to convert the galvanometer into ammeter to read upto \(10\,A\) is \(x \times {10^{ - 2}}\,\Omega .\) The value of \(x\) is

1 800
2 20
3 200
4 2
PHXII04:MOVING CHARGES AND MAGNETISM

362938 A moving coil galvanometer is converted into an ammeter of range 0 to \(5\;mA\). The galvanometer resistance is \(90 \Omega\) and the shunt resistance has a value of \(10 \Omega\). If there are 50 divisions in the galvanometer turned ammeter on either sides of zero, its current sensitivity is

1 \(2 \times {10^4}\;A/div\)
2 \(1 \times {10^5}\;div/A\)
3 \(2 \times {10^5}\;div/A\)
4 \(1 \times {10^5}\;A/div\)
PHXII04:MOVING CHARGES AND MAGNETISM

362939 The resistance of an ammeter is \(13 \Omega\) and its scale is graduated for a current upto 100\(A\). After an additional shunt has been connected to this ammeter it becomes possible to measure current upto 750\(A\) by this meter. The value of shunt resistance is

1 \(2 \Omega\)
2 \(20 \Omega\)
3 \(2 k \Omega\)
4 \(0.2 \Omega\)
PHXII04:MOVING CHARGES AND MAGNETISM

362940 An ammeter has a resistance of \(R\) ohm and a range of ' \(i\) ' ampere. The value of resistance used in parallel, to convert into an ammeter of range 'ni' ampere is

1 \(nR\)
2 \((n - 1)R\)
3 \(R / n\)
4 \(R/n - 1\)
PHXII04:MOVING CHARGES AND MAGNETISM

362941 A galvanometer of resistance \(100\,\Omega \) when connected in series with \(400\,\Omega \) measures avoltage of upto \(10\,V.\) The value of resistance required to convert the galvanometer into ammeter to read upto \(10\,A\) is \(x \times {10^{ - 2}}\,\Omega .\) The value of \(x\) is

1 800
2 20
3 200
4 2