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

152814 With resistance $P$ and $Q$ in the left and the right gap respectively of a meter bridge, the null point divides the wire in the ratio $3: 4$. When $P$ and $Q$ are increased by $20 \Omega$ each, the null point divides the wire in the ratio $5: 6$. Then the values of $P$. $Q$ respectively are .............

1 $30 \Omega, 40 \Omega$
2 $20 \Omega, 40 \Omega$
3 $30 \Omega, 80 \Omega$
4 $20 \Omega, 20 \Omega$
AP EAMCET-23.09.2020
Current Electricity

152816 A voltmeter has a resistance ' $G$ ' and range ' $V$ '. What resistance should be connected in series to it. in order to increase its range to $\mathrm{nV}$ ?

1 $\mathrm{nG}$
2 $(\mathrm{n}+1) \mathrm{G}$
3 $(\mathrm{n}-1) \mathrm{G}$
4 $\frac{\mathrm{G}}{\mathrm{n}}$
AP EAMCET-24.09.2020
Current Electricity

152817 An ammeter shows full deflection when a current of $1 \mathrm{~A}$ is passing through it, $\mathrm{A}$ shunt is connected such that it shows full deflection for a current of $10 \mathrm{~A}$. The ratio of resistance of the shunt and the ammeter is

1 $9: 1$
2 $1: 9$
3 $11: 1$
4 $1: 11$
Tripura-2020
Current Electricity

152818 In the circuit shown in figure, the ammeter $A$ reads zero. If the batteries box has negligible internal resistances, the value of $R$ is

1 $5 \Omega$
2 $10 \Omega$
3 $15 \Omega$
4 $20 \Omega$
Assam CEE-2020
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection $V_{0}$ by connecting a series resistance $R_{1}$ and can be converted to an ammeter of full scale deflection $I_{0}$ by connecting a shunt resistance $R_{2}$. What is the current flowing through the galvanometer at its full scale deflection?

1 $\frac{V_{0}-I_{0} R_{2}}{R_{1}-R_{2}}$
2 $\frac{V_{0}+I_{0} R_{2}}{R_{1}+R_{2}}$
3 $\frac{V_{0}-I_{0} R_{1}}{R_{2}-R_{1}}$
4 $\frac{\mathrm{V}_{0}+\mathrm{I}_{0} \mathrm{R}_{1}}{\mathrm{R}_{1}+\mathrm{R}_{2}}$
WB JEE 2020
NEET DIGITAL LIBRARY
Current Electricity

152814 With resistance $P$ and $Q$ in the left and the right gap respectively of a meter bridge, the null point divides the wire in the ratio $3: 4$. When $P$ and $Q$ are increased by $20 \Omega$ each, the null point divides the wire in the ratio $5: 6$. Then the values of $P$. $Q$ respectively are .............

1 $30 \Omega, 40 \Omega$
2 $20 \Omega, 40 \Omega$
3 $30 \Omega, 80 \Omega$
4 $20 \Omega, 20 \Omega$
AP EAMCET-23.09.2020
Current Electricity

152816 A voltmeter has a resistance ' $G$ ' and range ' $V$ '. What resistance should be connected in series to it. in order to increase its range to $\mathrm{nV}$ ?

1 $\mathrm{nG}$
2 $(\mathrm{n}+1) \mathrm{G}$
3 $(\mathrm{n}-1) \mathrm{G}$
4 $\frac{\mathrm{G}}{\mathrm{n}}$
AP EAMCET-24.09.2020
Current Electricity

152817 An ammeter shows full deflection when a current of $1 \mathrm{~A}$ is passing through it, $\mathrm{A}$ shunt is connected such that it shows full deflection for a current of $10 \mathrm{~A}$. The ratio of resistance of the shunt and the ammeter is

1 $9: 1$
2 $1: 9$
3 $11: 1$
4 $1: 11$
Tripura-2020
Current Electricity

152818 In the circuit shown in figure, the ammeter $A$ reads zero. If the batteries box has negligible internal resistances, the value of $R$ is

1 $5 \Omega$
2 $10 \Omega$
3 $15 \Omega$
4 $20 \Omega$
Assam CEE-2020
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection $V_{0}$ by connecting a series resistance $R_{1}$ and can be converted to an ammeter of full scale deflection $I_{0}$ by connecting a shunt resistance $R_{2}$. What is the current flowing through the galvanometer at its full scale deflection?

1 $\frac{V_{0}-I_{0} R_{2}}{R_{1}-R_{2}}$
2 $\frac{V_{0}+I_{0} R_{2}}{R_{1}+R_{2}}$
3 $\frac{V_{0}-I_{0} R_{1}}{R_{2}-R_{1}}$
4 $\frac{\mathrm{V}_{0}+\mathrm{I}_{0} \mathrm{R}_{1}}{\mathrm{R}_{1}+\mathrm{R}_{2}}$
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Current Electricity

152814 With resistance $P$ and $Q$ in the left and the right gap respectively of a meter bridge, the null point divides the wire in the ratio $3: 4$. When $P$ and $Q$ are increased by $20 \Omega$ each, the null point divides the wire in the ratio $5: 6$. Then the values of $P$. $Q$ respectively are .............

1 $30 \Omega, 40 \Omega$
2 $20 \Omega, 40 \Omega$
3 $30 \Omega, 80 \Omega$
4 $20 \Omega, 20 \Omega$
AP EAMCET-23.09.2020
Current Electricity

152816 A voltmeter has a resistance ' $G$ ' and range ' $V$ '. What resistance should be connected in series to it. in order to increase its range to $\mathrm{nV}$ ?

1 $\mathrm{nG}$
2 $(\mathrm{n}+1) \mathrm{G}$
3 $(\mathrm{n}-1) \mathrm{G}$
4 $\frac{\mathrm{G}}{\mathrm{n}}$
AP EAMCET-24.09.2020
Current Electricity

152817 An ammeter shows full deflection when a current of $1 \mathrm{~A}$ is passing through it, $\mathrm{A}$ shunt is connected such that it shows full deflection for a current of $10 \mathrm{~A}$. The ratio of resistance of the shunt and the ammeter is

1 $9: 1$
2 $1: 9$
3 $11: 1$
4 $1: 11$
Tripura-2020
Current Electricity

152818 In the circuit shown in figure, the ammeter $A$ reads zero. If the batteries box has negligible internal resistances, the value of $R$ is

1 $5 \Omega$
2 $10 \Omega$
3 $15 \Omega$
4 $20 \Omega$
Assam CEE-2020
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection $V_{0}$ by connecting a series resistance $R_{1}$ and can be converted to an ammeter of full scale deflection $I_{0}$ by connecting a shunt resistance $R_{2}$. What is the current flowing through the galvanometer at its full scale deflection?

1 $\frac{V_{0}-I_{0} R_{2}}{R_{1}-R_{2}}$
2 $\frac{V_{0}+I_{0} R_{2}}{R_{1}+R_{2}}$
3 $\frac{V_{0}-I_{0} R_{1}}{R_{2}-R_{1}}$
4 $\frac{\mathrm{V}_{0}+\mathrm{I}_{0} \mathrm{R}_{1}}{\mathrm{R}_{1}+\mathrm{R}_{2}}$
WB JEE 2020
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Current Electricity

152814 With resistance $P$ and $Q$ in the left and the right gap respectively of a meter bridge, the null point divides the wire in the ratio $3: 4$. When $P$ and $Q$ are increased by $20 \Omega$ each, the null point divides the wire in the ratio $5: 6$. Then the values of $P$. $Q$ respectively are .............

1 $30 \Omega, 40 \Omega$
2 $20 \Omega, 40 \Omega$
3 $30 \Omega, 80 \Omega$
4 $20 \Omega, 20 \Omega$
AP EAMCET-23.09.2020
Current Electricity

152816 A voltmeter has a resistance ' $G$ ' and range ' $V$ '. What resistance should be connected in series to it. in order to increase its range to $\mathrm{nV}$ ?

1 $\mathrm{nG}$
2 $(\mathrm{n}+1) \mathrm{G}$
3 $(\mathrm{n}-1) \mathrm{G}$
4 $\frac{\mathrm{G}}{\mathrm{n}}$
AP EAMCET-24.09.2020
Current Electricity

152817 An ammeter shows full deflection when a current of $1 \mathrm{~A}$ is passing through it, $\mathrm{A}$ shunt is connected such that it shows full deflection for a current of $10 \mathrm{~A}$. The ratio of resistance of the shunt and the ammeter is

1 $9: 1$
2 $1: 9$
3 $11: 1$
4 $1: 11$
Tripura-2020
Current Electricity

152818 In the circuit shown in figure, the ammeter $A$ reads zero. If the batteries box has negligible internal resistances, the value of $R$ is

1 $5 \Omega$
2 $10 \Omega$
3 $15 \Omega$
4 $20 \Omega$
Assam CEE-2020
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection $V_{0}$ by connecting a series resistance $R_{1}$ and can be converted to an ammeter of full scale deflection $I_{0}$ by connecting a shunt resistance $R_{2}$. What is the current flowing through the galvanometer at its full scale deflection?

1 $\frac{V_{0}-I_{0} R_{2}}{R_{1}-R_{2}}$
2 $\frac{V_{0}+I_{0} R_{2}}{R_{1}+R_{2}}$
3 $\frac{V_{0}-I_{0} R_{1}}{R_{2}-R_{1}}$
4 $\frac{\mathrm{V}_{0}+\mathrm{I}_{0} \mathrm{R}_{1}}{\mathrm{R}_{1}+\mathrm{R}_{2}}$
WB JEE 2020
NEET DIGITAL LIBRARY
Current Electricity

152814 With resistance $P$ and $Q$ in the left and the right gap respectively of a meter bridge, the null point divides the wire in the ratio $3: 4$. When $P$ and $Q$ are increased by $20 \Omega$ each, the null point divides the wire in the ratio $5: 6$. Then the values of $P$. $Q$ respectively are .............

1 $30 \Omega, 40 \Omega$
2 $20 \Omega, 40 \Omega$
3 $30 \Omega, 80 \Omega$
4 $20 \Omega, 20 \Omega$
AP EAMCET-23.09.2020
Current Electricity

152816 A voltmeter has a resistance ' $G$ ' and range ' $V$ '. What resistance should be connected in series to it. in order to increase its range to $\mathrm{nV}$ ?

1 $\mathrm{nG}$
2 $(\mathrm{n}+1) \mathrm{G}$
3 $(\mathrm{n}-1) \mathrm{G}$
4 $\frac{\mathrm{G}}{\mathrm{n}}$
AP EAMCET-24.09.2020
Current Electricity

152817 An ammeter shows full deflection when a current of $1 \mathrm{~A}$ is passing through it, $\mathrm{A}$ shunt is connected such that it shows full deflection for a current of $10 \mathrm{~A}$. The ratio of resistance of the shunt and the ammeter is

1 $9: 1$
2 $1: 9$
3 $11: 1$
4 $1: 11$
Tripura-2020
Current Electricity

152818 In the circuit shown in figure, the ammeter $A$ reads zero. If the batteries box has negligible internal resistances, the value of $R$ is

1 $5 \Omega$
2 $10 \Omega$
3 $15 \Omega$
4 $20 \Omega$
Assam CEE-2020
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection $V_{0}$ by connecting a series resistance $R_{1}$ and can be converted to an ammeter of full scale deflection $I_{0}$ by connecting a shunt resistance $R_{2}$. What is the current flowing through the galvanometer at its full scale deflection?

1 $\frac{V_{0}-I_{0} R_{2}}{R_{1}-R_{2}}$
2 $\frac{V_{0}+I_{0} R_{2}}{R_{1}+R_{2}}$
3 $\frac{V_{0}-I_{0} R_{1}}{R_{2}-R_{1}}$
4 $\frac{\mathrm{V}_{0}+\mathrm{I}_{0} \mathrm{R}_{1}}{\mathrm{R}_{1}+\mathrm{R}_{2}}$
WB JEE 2020