06. Measuring Instrument (Meter Bridge, Galvanometer, Ammeter, Voltmeter, Potentiometer)
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 nV ?

1 nG
2 (n+1)G
3 (n1)G
4 Gn
Current Electricity

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

1 9:1
2 1:9
3 11:1
4 1:11
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 5Ω
2 10Ω
3 15Ω
4 20Ω
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection V0 by connecting a series resistance R1 and can be converted to an ammeter of full scale deflection I0 by connecting a shunt resistance R2. What is the current flowing through the galvanometer at its full scale deflection?

1 V0I0R2R1R2
2 V0+I0R2R1+R2
3 V0I0R1R2R1
4 V0+I0R1R1+R2
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 20Ω each, the null point divides the wire in the ratio 5:6. Then the values of P. Q respectively are .............

1 30Ω,40Ω
2 20Ω,40Ω
3 30Ω,80Ω
4 20Ω,20Ω
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 nV ?

1 nG
2 (n+1)G
3 (n1)G
4 Gn
Current Electricity

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

1 9:1
2 1:9
3 11:1
4 1:11
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 5Ω
2 10Ω
3 15Ω
4 20Ω
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection V0 by connecting a series resistance R1 and can be converted to an ammeter of full scale deflection I0 by connecting a shunt resistance R2. What is the current flowing through the galvanometer at its full scale deflection?

1 V0I0R2R1R2
2 V0+I0R2R1+R2
3 V0I0R1R2R1
4 V0+I0R1R1+R2
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 20Ω each, the null point divides the wire in the ratio 5:6. Then the values of P. Q respectively are .............

1 30Ω,40Ω
2 20Ω,40Ω
3 30Ω,80Ω
4 20Ω,20Ω
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 nV ?

1 nG
2 (n+1)G
3 (n1)G
4 Gn
Current Electricity

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

1 9:1
2 1:9
3 11:1
4 1:11
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 5Ω
2 10Ω
3 15Ω
4 20Ω
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection V0 by connecting a series resistance R1 and can be converted to an ammeter of full scale deflection I0 by connecting a shunt resistance R2. What is the current flowing through the galvanometer at its full scale deflection?

1 V0I0R2R1R2
2 V0+I0R2R1+R2
3 V0I0R1R2R1
4 V0+I0R1R1+R2
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 20Ω each, the null point divides the wire in the ratio 5:6. Then the values of P. Q respectively are .............

1 30Ω,40Ω
2 20Ω,40Ω
3 30Ω,80Ω
4 20Ω,20Ω
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 nV ?

1 nG
2 (n+1)G
3 (n1)G
4 Gn
Current Electricity

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

1 9:1
2 1:9
3 11:1
4 1:11
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 5Ω
2 10Ω
3 15Ω
4 20Ω
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection V0 by connecting a series resistance R1 and can be converted to an ammeter of full scale deflection I0 by connecting a shunt resistance R2. What is the current flowing through the galvanometer at its full scale deflection?

1 V0I0R2R1R2
2 V0+I0R2R1+R2
3 V0I0R1R2R1
4 V0+I0R1R1+R2
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 20Ω each, the null point divides the wire in the ratio 5:6. Then the values of P. Q respectively are .............

1 30Ω,40Ω
2 20Ω,40Ω
3 30Ω,80Ω
4 20Ω,20Ω
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 nV ?

1 nG
2 (n+1)G
3 (n1)G
4 Gn
Current Electricity

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

1 9:1
2 1:9
3 11:1
4 1:11
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 5Ω
2 10Ω
3 15Ω
4 20Ω
Current Electricity

152820 A galvanometer can be converted to a voltmeter of full scale deflection V0 by connecting a series resistance R1 and can be converted to an ammeter of full scale deflection I0 by connecting a shunt resistance R2. What is the current flowing through the galvanometer at its full scale deflection?

1 V0I0R2R1R2
2 V0+I0R2R1+R2
3 V0I0R1R2R1
4 V0+I0R1R1+R2