Physics
General
Easy
Question
The range of a galvanometer of resistance G ohm is V wolt. The resistance required to be connected in series with it in order to convert it into voltmeter of range volt will be........
- nG
The correct answer is:
Related Questions to study
physics
A galvanometer with resistance 100Ω is converted into an ammeter with a resistance of 0.1. The galvanometer shows full scale deflection with current of 100μA. Then what will be the minimum current in the circuit for fall scale deflection of galvanometer?
A galvanometer with resistance 100Ω is converted into an ammeter with a resistance of 0.1. The galvanometer shows full scale deflection with current of 100μA. Then what will be the minimum current in the circuit for fall scale deflection of galvanometer?
physicsGeneral
physics
A galvanometer of resistance 200Ω gives full scale deflection for a current of A. To convert it into an anmeter capable of measuring upto 1A. What resistance should be connected in parallel with it ?
A galvanometer of resistance 200Ω gives full scale deflection for a current of A. To convert it into an anmeter capable of measuring upto 1A. What resistance should be connected in parallel with it ?
physicsGeneral
physics
A moving coil galvanometer has 150 equal divisions, Hs current sensitivity is 10 divisions per milliampere and voltage sensitivity is 2 divisions per millivolt. In order that each divisions reads 1 V . What will be the resistance in ohms needed to be connected in series with the coil?
A moving coil galvanometer has 150 equal divisions, Hs current sensitivity is 10 divisions per milliampere and voltage sensitivity is 2 divisions per millivolt. In order that each divisions reads 1 V . What will be the resistance in ohms needed to be connected in series with the coil?
physicsGeneral
physics
A battery of 2 V and internal resistance 1 is used to send a current through a potentiometer wire of length 200 cm and resistance What is the potential gradieut of the wire?
A battery of 2 V and internal resistance 1 is used to send a current through a potentiometer wire of length 200 cm and resistance What is the potential gradieut of the wire?
physicsGeneral
physics
A potentiometer wire, which is 4 cm long is connected to the terminals of a battery of steady voltage A leclanche cell gives a nullpoint at 1 m if the length of the potentiometer wire be increased by 1 m, What is the new new position of the null point?
A potentiometer wire, which is 4 cm long is connected to the terminals of a battery of steady voltage A leclanche cell gives a nullpoint at 1 m if the length of the potentiometer wire be increased by 1 m, What is the new new position of the null point?
physicsGeneral
physics
In experiment of the potentiometer wire AB of length 100 cm has a resistance of 10Ω, It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance.A Source of emf 10mV is balanced against a length of of 40 cm the poteatio meter wire. What is the value of the external resistance?
In experiment of the potentiometer wire AB of length 100 cm has a resistance of 10Ω, It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance.A Source of emf 10mV is balanced against a length of of 40 cm the poteatio meter wire. What is the value of the external resistance?
physicsGeneral
physics
If the deflection of the galvanometer is the same direction at both the ends of the potential meter wire, then point out the statement which is definitely not the possible reason for the.
If the deflection of the galvanometer is the same direction at both the ends of the potential meter wire, then point out the statement which is definitely not the possible reason for the.
physicsGeneral
Physics
In the experiment of potentiometer wire AB is 100 cm long shown in figure When AC=40 cm , no deflection oocurs in the galvanometer. What is the value of R ?
In the experiment of potentiometer wire AB is 100 cm long shown in figure When AC=40 cm , no deflection oocurs in the galvanometer. What is the value of R ?
PhysicsGeneral
maths-
The area bounded between the parabola y2 = 4x and the line y = 2x – 4 is equal to
The area bounded between the parabola y2 = 4x and the line y = 2x – 4 is equal to
maths-General
physics
Consider the potentiometer circuit shown. The potentiometer wire is 600 cm long and having restance 15r At what distance from the point A should the jockey touch the wire to get zero deflection in the galvanometer?
Consider the potentiometer circuit shown. The potentiometer wire is 600 cm long and having restance 15r At what distance from the point A should the jockey touch the wire to get zero deflection in the galvanometer?
physicsGeneral
physics-
The strain-stress curves of three wires of different materials are shown in the figure. and are the elastic limits of the wires. The figure shows that
The strain-stress curves of three wires of different materials are shown in the figure. and are the elastic limits of the wires. The figure shows that
physics-General
chemistry-
Which of the following equations corresponds to theenthalpyofcombustionat298K:-
Which of the following equations corresponds to theenthalpyofcombustionat298K:-
chemistry-General
chemistry-
IfC6H12O6(s)+9O2(g)→6CO2(g)+6H2O(g); ΔH=–680Kcal The weight of CO2(g) produced when170Kcal of heat is evolved in the combustion
IfC6H12O6(s)+9O2(g)→6CO2(g)+6H2O(g); ΔH=–680Kcal The weight of CO2(g) produced when170Kcal of heat is evolved in the combustion
chemistry-General
chemistry-
TheenthalpyofformationforC2H4(g),CO2(g) and H2O() at 25°C and 1atm. pressure are 52,–394 and –286KJmol–1 respectively. The enthalpy of combustion of C2H4 will be-
TheenthalpyofformationforC2H4(g),CO2(g) and H2O() at 25°C and 1atm. pressure are 52,–394 and –286KJmol–1 respectively. The enthalpy of combustion of C2H4 will be-
chemistry-General
chemistry-
Accordingtoequation, CH()+15/2O(g)→6CO(g)+3HO() ΔH= –3264.4KJ mol the energy evolved when7.8g benzene is burn tin air will be-
Accordingtoequation, CH()+15/2O(g)→6CO(g)+3HO() ΔH= –3264.4KJ mol the energy evolved when7.8g benzene is burn tin air will be-
chemistry-General