02. Moving Coil Galvanometer and Magnetic Device
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Magnetism and Matter

154252 A magnetic needle suspended in a vertical plane at $30^{\circ}$ from the magnetic meridian makes an angle $45^{\circ}$ with the horizontal. What will be the true angle of dip?

1 $\tan ^{-1}\left(\frac{\sqrt{3}}{2}\right)$
2 $\tan ^{-1}(\sqrt{3})$
3 $45^{0}$
4 $30^{\circ}$
BCECE-2003
Magnetism and Matter

154254 Three moving coil galvanometer $A, B$ and $C$ are made of coils of three different material having torsional constant $1.8 \times 10^{-8}, 2.8 \times 10^{-8}$ and $3.8 \times 10^{-8}$ respectively. If the three galvanometers are identical in all other respect, then in which of the above cases sensitivity is maximum ?

1 $\mathrm{A}$
2 $\mathrm{C}$
3 $\mathrm{B}$
4 Same in each case
MHT-CET 2005
Magnetism and Matter

154255 A galvanometer with a scale divided into 100 equal divisions has a current sensitivity of $\mathbf{1 0}$ divisions per milliampere and a voltage sensitivity of 2 divisions per millivolt. The galvanometer resistance will be

1 $4 \Omega$
2 $5 \Omega$
3 $3 \Omega$
4 $7 \Omega$
VITEEE-2015
Magnetism and Matter

154256 A galvanometer has current range of $15 \mathrm{~mA}$ and voltage range $750 \mathrm{mV}$. To convert this galvanometer into an ammeter of range $25 \mathrm{~A}$, the required shunt is

1 $0.8 \Omega$
2 $0.93 \Omega$
3 $0.03 \Omega$
4 $2.0 \Omega$
VITEEE-2014
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Magnetism and Matter

154252 A magnetic needle suspended in a vertical plane at $30^{\circ}$ from the magnetic meridian makes an angle $45^{\circ}$ with the horizontal. What will be the true angle of dip?

1 $\tan ^{-1}\left(\frac{\sqrt{3}}{2}\right)$
2 $\tan ^{-1}(\sqrt{3})$
3 $45^{0}$
4 $30^{\circ}$
BCECE-2003
Magnetism and Matter

154254 Three moving coil galvanometer $A, B$ and $C$ are made of coils of three different material having torsional constant $1.8 \times 10^{-8}, 2.8 \times 10^{-8}$ and $3.8 \times 10^{-8}$ respectively. If the three galvanometers are identical in all other respect, then in which of the above cases sensitivity is maximum ?

1 $\mathrm{A}$
2 $\mathrm{C}$
3 $\mathrm{B}$
4 Same in each case
MHT-CET 2005
Magnetism and Matter

154255 A galvanometer with a scale divided into 100 equal divisions has a current sensitivity of $\mathbf{1 0}$ divisions per milliampere and a voltage sensitivity of 2 divisions per millivolt. The galvanometer resistance will be

1 $4 \Omega$
2 $5 \Omega$
3 $3 \Omega$
4 $7 \Omega$
VITEEE-2015
Magnetism and Matter

154256 A galvanometer has current range of $15 \mathrm{~mA}$ and voltage range $750 \mathrm{mV}$. To convert this galvanometer into an ammeter of range $25 \mathrm{~A}$, the required shunt is

1 $0.8 \Omega$
2 $0.93 \Omega$
3 $0.03 \Omega$
4 $2.0 \Omega$
VITEEE-2014
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Magnetism and Matter

154252 A magnetic needle suspended in a vertical plane at $30^{\circ}$ from the magnetic meridian makes an angle $45^{\circ}$ with the horizontal. What will be the true angle of dip?

1 $\tan ^{-1}\left(\frac{\sqrt{3}}{2}\right)$
2 $\tan ^{-1}(\sqrt{3})$
3 $45^{0}$
4 $30^{\circ}$
BCECE-2003
Magnetism and Matter

154254 Three moving coil galvanometer $A, B$ and $C$ are made of coils of three different material having torsional constant $1.8 \times 10^{-8}, 2.8 \times 10^{-8}$ and $3.8 \times 10^{-8}$ respectively. If the three galvanometers are identical in all other respect, then in which of the above cases sensitivity is maximum ?

1 $\mathrm{A}$
2 $\mathrm{C}$
3 $\mathrm{B}$
4 Same in each case
MHT-CET 2005
Magnetism and Matter

154255 A galvanometer with a scale divided into 100 equal divisions has a current sensitivity of $\mathbf{1 0}$ divisions per milliampere and a voltage sensitivity of 2 divisions per millivolt. The galvanometer resistance will be

1 $4 \Omega$
2 $5 \Omega$
3 $3 \Omega$
4 $7 \Omega$
VITEEE-2015
Magnetism and Matter

154256 A galvanometer has current range of $15 \mathrm{~mA}$ and voltage range $750 \mathrm{mV}$. To convert this galvanometer into an ammeter of range $25 \mathrm{~A}$, the required shunt is

1 $0.8 \Omega$
2 $0.93 \Omega$
3 $0.03 \Omega$
4 $2.0 \Omega$
VITEEE-2014
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Magnetism and Matter

154252 A magnetic needle suspended in a vertical plane at $30^{\circ}$ from the magnetic meridian makes an angle $45^{\circ}$ with the horizontal. What will be the true angle of dip?

1 $\tan ^{-1}\left(\frac{\sqrt{3}}{2}\right)$
2 $\tan ^{-1}(\sqrt{3})$
3 $45^{0}$
4 $30^{\circ}$
BCECE-2003
Magnetism and Matter

154254 Three moving coil galvanometer $A, B$ and $C$ are made of coils of three different material having torsional constant $1.8 \times 10^{-8}, 2.8 \times 10^{-8}$ and $3.8 \times 10^{-8}$ respectively. If the three galvanometers are identical in all other respect, then in which of the above cases sensitivity is maximum ?

1 $\mathrm{A}$
2 $\mathrm{C}$
3 $\mathrm{B}$
4 Same in each case
MHT-CET 2005
Magnetism and Matter

154255 A galvanometer with a scale divided into 100 equal divisions has a current sensitivity of $\mathbf{1 0}$ divisions per milliampere and a voltage sensitivity of 2 divisions per millivolt. The galvanometer resistance will be

1 $4 \Omega$
2 $5 \Omega$
3 $3 \Omega$
4 $7 \Omega$
VITEEE-2015
Magnetism and Matter

154256 A galvanometer has current range of $15 \mathrm{~mA}$ and voltage range $750 \mathrm{mV}$. To convert this galvanometer into an ammeter of range $25 \mathrm{~A}$, the required shunt is

1 $0.8 \Omega$
2 $0.93 \Omega$
3 $0.03 \Omega$
4 $2.0 \Omega$
VITEEE-2014
For More Updates join with Us