06. Measuring Instrument (Meter Bridge, Galvanometer, Ammeter, Voltmeter, Potentiometer)
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Current Electricity

152796 The null point of a potentiometer with a cell of emf ' $\varepsilon$ ' is obtained at a distance ' $l$ ' on the wire then

1 $\varepsilon \propto \ell$
2 $\varepsilon \propto \ell^{2}$
3 $\varepsilon \propto \frac{1}{\ell}$
4 $\varepsilon \propto \frac{1}{\ell^{2}}$
AP EAMCET-23.08.2021
Current Electricity

152797 A tangent galvanometer has a coil of 50 turns and a radius of $20 \mathrm{~cm}$. the horizontal component of earth's magnetic field is $3 \times 10^{-5}$ T. What will be the current which gives a deflection of $45^{\circ}$ ?

1 $\frac{3}{5 \pi} \mathrm{A}$
2 $\frac{5}{3 \pi} \mathrm{A}$
3 $\frac{3 \pi}{5} \mathrm{~A}$
4 $\frac{5 \pi}{3} \mathrm{~A}$
AP EAMCET-05.10.2021
Current Electricity

152798 A $10 \Omega$ galvanometer shows full deflection for a current of $1 \mathrm{~mA}$. How resistance has to be connected in series to convert the galvanometer to a voltmeter which can measure a maximum voltage of $2.5 \mathrm{~V}$ ?

1 $24.9 \Omega$
2 $249 \Omega$
3 $2490 \Omega$
4 $24990 \Omega$
Tripura-2021
Current Electricity

152799 A galvanometer coil has a resistance of $12 \Omega$ and the metre shows full scale deflection for a current of $3 \mathrm{~mA}$. It may be converted into a voltmeter of range 0 to $18 \mathrm{v}$ if a resistance of value........ $\Omega$ is connected in

1 5898, parallel
2 5889 , series
3 8859 , parallel
4 5988, series
Assam CEE-2021
Current Electricity

152800 A galvanometer coil has a resistance of $10 \Omega$ and the meter shows full scale deflection for a current of $2 \mathrm{~mA}$. What resistance needs to be connected to convert the meter into a voltmeter of range 0 to $18 \mathrm{~V}$ ?

1 $8880 \Omega$
2 $8990 \Omega$
3 $9000 \Omega$
4 $9010 \Omega$
TS EAMCET 05.08.2021
Join With Us for More Updates
Current Electricity

152796 The null point of a potentiometer with a cell of emf ' $\varepsilon$ ' is obtained at a distance ' $l$ ' on the wire then

1 $\varepsilon \propto \ell$
2 $\varepsilon \propto \ell^{2}$
3 $\varepsilon \propto \frac{1}{\ell}$
4 $\varepsilon \propto \frac{1}{\ell^{2}}$
AP EAMCET-23.08.2021
Current Electricity

152797 A tangent galvanometer has a coil of 50 turns and a radius of $20 \mathrm{~cm}$. the horizontal component of earth's magnetic field is $3 \times 10^{-5}$ T. What will be the current which gives a deflection of $45^{\circ}$ ?

1 $\frac{3}{5 \pi} \mathrm{A}$
2 $\frac{5}{3 \pi} \mathrm{A}$
3 $\frac{3 \pi}{5} \mathrm{~A}$
4 $\frac{5 \pi}{3} \mathrm{~A}$
AP EAMCET-05.10.2021
Current Electricity

152798 A $10 \Omega$ galvanometer shows full deflection for a current of $1 \mathrm{~mA}$. How resistance has to be connected in series to convert the galvanometer to a voltmeter which can measure a maximum voltage of $2.5 \mathrm{~V}$ ?

1 $24.9 \Omega$
2 $249 \Omega$
3 $2490 \Omega$
4 $24990 \Omega$
Tripura-2021
Current Electricity

152799 A galvanometer coil has a resistance of $12 \Omega$ and the metre shows full scale deflection for a current of $3 \mathrm{~mA}$. It may be converted into a voltmeter of range 0 to $18 \mathrm{v}$ if a resistance of value........ $\Omega$ is connected in

1 5898, parallel
2 5889 , series
3 8859 , parallel
4 5988, series
Assam CEE-2021
Current Electricity

152800 A galvanometer coil has a resistance of $10 \Omega$ and the meter shows full scale deflection for a current of $2 \mathrm{~mA}$. What resistance needs to be connected to convert the meter into a voltmeter of range 0 to $18 \mathrm{~V}$ ?

1 $8880 \Omega$
2 $8990 \Omega$
3 $9000 \Omega$
4 $9010 \Omega$
TS EAMCET 05.08.2021
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Current Electricity

152796 The null point of a potentiometer with a cell of emf ' $\varepsilon$ ' is obtained at a distance ' $l$ ' on the wire then

1 $\varepsilon \propto \ell$
2 $\varepsilon \propto \ell^{2}$
3 $\varepsilon \propto \frac{1}{\ell}$
4 $\varepsilon \propto \frac{1}{\ell^{2}}$
AP EAMCET-23.08.2021
Current Electricity

152797 A tangent galvanometer has a coil of 50 turns and a radius of $20 \mathrm{~cm}$. the horizontal component of earth's magnetic field is $3 \times 10^{-5}$ T. What will be the current which gives a deflection of $45^{\circ}$ ?

1 $\frac{3}{5 \pi} \mathrm{A}$
2 $\frac{5}{3 \pi} \mathrm{A}$
3 $\frac{3 \pi}{5} \mathrm{~A}$
4 $\frac{5 \pi}{3} \mathrm{~A}$
AP EAMCET-05.10.2021
Current Electricity

152798 A $10 \Omega$ galvanometer shows full deflection for a current of $1 \mathrm{~mA}$. How resistance has to be connected in series to convert the galvanometer to a voltmeter which can measure a maximum voltage of $2.5 \mathrm{~V}$ ?

1 $24.9 \Omega$
2 $249 \Omega$
3 $2490 \Omega$
4 $24990 \Omega$
Tripura-2021
Current Electricity

152799 A galvanometer coil has a resistance of $12 \Omega$ and the metre shows full scale deflection for a current of $3 \mathrm{~mA}$. It may be converted into a voltmeter of range 0 to $18 \mathrm{v}$ if a resistance of value........ $\Omega$ is connected in

1 5898, parallel
2 5889 , series
3 8859 , parallel
4 5988, series
Assam CEE-2021
Current Electricity

152800 A galvanometer coil has a resistance of $10 \Omega$ and the meter shows full scale deflection for a current of $2 \mathrm{~mA}$. What resistance needs to be connected to convert the meter into a voltmeter of range 0 to $18 \mathrm{~V}$ ?

1 $8880 \Omega$
2 $8990 \Omega$
3 $9000 \Omega$
4 $9010 \Omega$
TS EAMCET 05.08.2021
NEET DIGITAL LIBRARY
Current Electricity

152796 The null point of a potentiometer with a cell of emf ' $\varepsilon$ ' is obtained at a distance ' $l$ ' on the wire then

1 $\varepsilon \propto \ell$
2 $\varepsilon \propto \ell^{2}$
3 $\varepsilon \propto \frac{1}{\ell}$
4 $\varepsilon \propto \frac{1}{\ell^{2}}$
AP EAMCET-23.08.2021
Current Electricity

152797 A tangent galvanometer has a coil of 50 turns and a radius of $20 \mathrm{~cm}$. the horizontal component of earth's magnetic field is $3 \times 10^{-5}$ T. What will be the current which gives a deflection of $45^{\circ}$ ?

1 $\frac{3}{5 \pi} \mathrm{A}$
2 $\frac{5}{3 \pi} \mathrm{A}$
3 $\frac{3 \pi}{5} \mathrm{~A}$
4 $\frac{5 \pi}{3} \mathrm{~A}$
AP EAMCET-05.10.2021
Current Electricity

152798 A $10 \Omega$ galvanometer shows full deflection for a current of $1 \mathrm{~mA}$. How resistance has to be connected in series to convert the galvanometer to a voltmeter which can measure a maximum voltage of $2.5 \mathrm{~V}$ ?

1 $24.9 \Omega$
2 $249 \Omega$
3 $2490 \Omega$
4 $24990 \Omega$
Tripura-2021
Current Electricity

152799 A galvanometer coil has a resistance of $12 \Omega$ and the metre shows full scale deflection for a current of $3 \mathrm{~mA}$. It may be converted into a voltmeter of range 0 to $18 \mathrm{v}$ if a resistance of value........ $\Omega$ is connected in

1 5898, parallel
2 5889 , series
3 8859 , parallel
4 5988, series
Assam CEE-2021
Current Electricity

152800 A galvanometer coil has a resistance of $10 \Omega$ and the meter shows full scale deflection for a current of $2 \mathrm{~mA}$. What resistance needs to be connected to convert the meter into a voltmeter of range 0 to $18 \mathrm{~V}$ ?

1 $8880 \Omega$
2 $8990 \Omega$
3 $9000 \Omega$
4 $9010 \Omega$
TS EAMCET 05.08.2021
Join With Us for More Updates
Current Electricity

152796 The null point of a potentiometer with a cell of emf ' $\varepsilon$ ' is obtained at a distance ' $l$ ' on the wire then

1 $\varepsilon \propto \ell$
2 $\varepsilon \propto \ell^{2}$
3 $\varepsilon \propto \frac{1}{\ell}$
4 $\varepsilon \propto \frac{1}{\ell^{2}}$
AP EAMCET-23.08.2021
Current Electricity

152797 A tangent galvanometer has a coil of 50 turns and a radius of $20 \mathrm{~cm}$. the horizontal component of earth's magnetic field is $3 \times 10^{-5}$ T. What will be the current which gives a deflection of $45^{\circ}$ ?

1 $\frac{3}{5 \pi} \mathrm{A}$
2 $\frac{5}{3 \pi} \mathrm{A}$
3 $\frac{3 \pi}{5} \mathrm{~A}$
4 $\frac{5 \pi}{3} \mathrm{~A}$
AP EAMCET-05.10.2021
Current Electricity

152798 A $10 \Omega$ galvanometer shows full deflection for a current of $1 \mathrm{~mA}$. How resistance has to be connected in series to convert the galvanometer to a voltmeter which can measure a maximum voltage of $2.5 \mathrm{~V}$ ?

1 $24.9 \Omega$
2 $249 \Omega$
3 $2490 \Omega$
4 $24990 \Omega$
Tripura-2021
Current Electricity

152799 A galvanometer coil has a resistance of $12 \Omega$ and the metre shows full scale deflection for a current of $3 \mathrm{~mA}$. It may be converted into a voltmeter of range 0 to $18 \mathrm{v}$ if a resistance of value........ $\Omega$ is connected in

1 5898, parallel
2 5889 , series
3 8859 , parallel
4 5988, series
Assam CEE-2021
Current Electricity

152800 A galvanometer coil has a resistance of $10 \Omega$ and the meter shows full scale deflection for a current of $2 \mathrm{~mA}$. What resistance needs to be connected to convert the meter into a voltmeter of range 0 to $18 \mathrm{~V}$ ?

1 $8880 \Omega$
2 $8990 \Omega$
3 $9000 \Omega$
4 $9010 \Omega$
TS EAMCET 05.08.2021