NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXII04:MOVING CHARGES AND MAGNETISM
362972
There are three voltmeters of the same range but of resistance \(10000 \Omega, 8000 \Omega\) and \(4000 \Omega\), respectively. The best voltmeter among these is the one whose resistance is
1 \(10000 \Omega\)
2 \(8000 \Omega\)
3 \(4000 \Omega\)
4 All are equally good
Explanation:
Best voltmeter is one with resistance \(10000 \Omega\). As voltmeter with high resistance draw minimum current (or less current) from circuit and gives reading close to the actual current.
PHXII04:MOVING CHARGES AND MAGNETISM
362973
A voltmeter has a \(25 \Omega\) coil and \(575 \Omega\) in series. The coil takes 10\(mA\) for full scale deflection. The maximum potential difference which can be measured is
362974
A galvanometer has a coil of resistance \(100 \Omega\) and gives a full scale deflection for 30\(mA\) current. If it is to work as a voltmeter of 30\(V\) range, the resistance required to be added will be
1 \(1800 \Omega\)
2 \(900 \Omega\)
3 \(1000 \Omega\)
4 \(500 \Omega\)
Explanation:
Required resistance to convert a galvanometer into voltmeter of \(30 \mathrm{~V}\) is given by \( \to {\rm{ }}G - MM\) \({\rm{ }}V = {i_g}(G + R)\) \(R = \frac{V}{{{i_g}}} - G = \frac{{30}}{{30 \times {{10}^{ - 3}}}} - 100 = 900\Omega \)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM
362975
A galvanometer acting as a voltmeter should have
1 low resistance in series with its coil
2 low resistance in parallel with its coil
3 high resistance in series with its coil
4 high resistance in parallel with its coil
Explanation:
Galvanometer act as a voltmeter when a very high resistance is connected in series with galvanometer.
362972
There are three voltmeters of the same range but of resistance \(10000 \Omega, 8000 \Omega\) and \(4000 \Omega\), respectively. The best voltmeter among these is the one whose resistance is
1 \(10000 \Omega\)
2 \(8000 \Omega\)
3 \(4000 \Omega\)
4 All are equally good
Explanation:
Best voltmeter is one with resistance \(10000 \Omega\). As voltmeter with high resistance draw minimum current (or less current) from circuit and gives reading close to the actual current.
PHXII04:MOVING CHARGES AND MAGNETISM
362973
A voltmeter has a \(25 \Omega\) coil and \(575 \Omega\) in series. The coil takes 10\(mA\) for full scale deflection. The maximum potential difference which can be measured is
362974
A galvanometer has a coil of resistance \(100 \Omega\) and gives a full scale deflection for 30\(mA\) current. If it is to work as a voltmeter of 30\(V\) range, the resistance required to be added will be
1 \(1800 \Omega\)
2 \(900 \Omega\)
3 \(1000 \Omega\)
4 \(500 \Omega\)
Explanation:
Required resistance to convert a galvanometer into voltmeter of \(30 \mathrm{~V}\) is given by \( \to {\rm{ }}G - MM\) \({\rm{ }}V = {i_g}(G + R)\) \(R = \frac{V}{{{i_g}}} - G = \frac{{30}}{{30 \times {{10}^{ - 3}}}} - 100 = 900\Omega \)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM
362975
A galvanometer acting as a voltmeter should have
1 low resistance in series with its coil
2 low resistance in parallel with its coil
3 high resistance in series with its coil
4 high resistance in parallel with its coil
Explanation:
Galvanometer act as a voltmeter when a very high resistance is connected in series with galvanometer.
362972
There are three voltmeters of the same range but of resistance \(10000 \Omega, 8000 \Omega\) and \(4000 \Omega\), respectively. The best voltmeter among these is the one whose resistance is
1 \(10000 \Omega\)
2 \(8000 \Omega\)
3 \(4000 \Omega\)
4 All are equally good
Explanation:
Best voltmeter is one with resistance \(10000 \Omega\). As voltmeter with high resistance draw minimum current (or less current) from circuit and gives reading close to the actual current.
PHXII04:MOVING CHARGES AND MAGNETISM
362973
A voltmeter has a \(25 \Omega\) coil and \(575 \Omega\) in series. The coil takes 10\(mA\) for full scale deflection. The maximum potential difference which can be measured is
362974
A galvanometer has a coil of resistance \(100 \Omega\) and gives a full scale deflection for 30\(mA\) current. If it is to work as a voltmeter of 30\(V\) range, the resistance required to be added will be
1 \(1800 \Omega\)
2 \(900 \Omega\)
3 \(1000 \Omega\)
4 \(500 \Omega\)
Explanation:
Required resistance to convert a galvanometer into voltmeter of \(30 \mathrm{~V}\) is given by \( \to {\rm{ }}G - MM\) \({\rm{ }}V = {i_g}(G + R)\) \(R = \frac{V}{{{i_g}}} - G = \frac{{30}}{{30 \times {{10}^{ - 3}}}} - 100 = 900\Omega \)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM
362975
A galvanometer acting as a voltmeter should have
1 low resistance in series with its coil
2 low resistance in parallel with its coil
3 high resistance in series with its coil
4 high resistance in parallel with its coil
Explanation:
Galvanometer act as a voltmeter when a very high resistance is connected in series with galvanometer.
362972
There are three voltmeters of the same range but of resistance \(10000 \Omega, 8000 \Omega\) and \(4000 \Omega\), respectively. The best voltmeter among these is the one whose resistance is
1 \(10000 \Omega\)
2 \(8000 \Omega\)
3 \(4000 \Omega\)
4 All are equally good
Explanation:
Best voltmeter is one with resistance \(10000 \Omega\). As voltmeter with high resistance draw minimum current (or less current) from circuit and gives reading close to the actual current.
PHXII04:MOVING CHARGES AND MAGNETISM
362973
A voltmeter has a \(25 \Omega\) coil and \(575 \Omega\) in series. The coil takes 10\(mA\) for full scale deflection. The maximum potential difference which can be measured is
362974
A galvanometer has a coil of resistance \(100 \Omega\) and gives a full scale deflection for 30\(mA\) current. If it is to work as a voltmeter of 30\(V\) range, the resistance required to be added will be
1 \(1800 \Omega\)
2 \(900 \Omega\)
3 \(1000 \Omega\)
4 \(500 \Omega\)
Explanation:
Required resistance to convert a galvanometer into voltmeter of \(30 \mathrm{~V}\) is given by \( \to {\rm{ }}G - MM\) \({\rm{ }}V = {i_g}(G + R)\) \(R = \frac{V}{{{i_g}}} - G = \frac{{30}}{{30 \times {{10}^{ - 3}}}} - 100 = 900\Omega \)
MHTCET - 2019
PHXII04:MOVING CHARGES AND MAGNETISM
362975
A galvanometer acting as a voltmeter should have
1 low resistance in series with its coil
2 low resistance in parallel with its coil
3 high resistance in series with its coil
4 high resistance in parallel with its coil
Explanation:
Galvanometer act as a voltmeter when a very high resistance is connected in series with galvanometer.
