Table of Contents
- 1 How will you convert a galvanometer into ammeter of range 0 to 1 A What is the effective resistance of the ammeter?
- 2 How do you change the range of an ammeter?
- 3 Can we convert ammeter into galvanometer?
- 4 How do you change the range of ammeter and voltmeter?
- 5 How can an ammeter be converted to a voltmeter?
- 6 How can you convert a galvanometer into an ammeter and voltmeter explain with diagram?
- 7 How do you convert a galvanometer to an ammeter?
- 8 How to design an ammeter to have a full-scale range?
- 9 How are the resistances of an ammeter determined?
How will you convert a galvanometer into ammeter of range 0 to 1 A What is the effective resistance of the ammeter?
galvanometer can be converted into a ammeter by connecting a shaunt resistance in parallel to it. should have a low resistance.
How do you change the range of an ammeter?
So to increase the range of ammeters we should have to connect low resistance in parallel so that equivalent resistance is lower hence to increase range of an ammeter we need to connect a suitable low resistance in parallel. Therefore option (A) is correct option .
Can we convert ammeter into galvanometer?
So ammeter is connected in series to measure the circuit current. A galvanometer is converted into an ammeter by connecting a low resistance in parallel with the galvanometer. This low resistance is called shunt resistance S.
What value of shunt is to be connected across a galvanometer of resistance of 20 Ohm so that only 0.5\% of the main current will pass through the galvanometer?
Shunt connected is 99//20Omega.
How can we convert galvanometer into ammeter of given range?
Mark points on each end of the wire and connect it to the two terminals of the galvanometer. The wire should be such that the points are on the outside of the terminal screws. A galvanometer with the shunt wire will now work as an ammeter with the range I.
How do you change the range of ammeter and voltmeter?
To increase the ranges of ammeter, we need to connect a small shunt resistance in parallel with ammeters. To increase the ranges of a voltmeter, we need to connect a high series of multiplier resistance in series with voltmeters. We can extend the range of ammeter by keeping a shunt resistance.
How can an ammeter be converted to a voltmeter?
Converting an ammeter to a voltmeter involves increasing the resistance of the ammeter. This is done by adding a high resistance in series with the ammeter. Let the range of the ammeter be 0 – I0 Amp and we convert it to a voltmeter of range 0 – V0 volt.
How can you convert a galvanometer into an ammeter and voltmeter explain with diagram?
A galvanometer can be converted into ammeter by connecting a low resistance called shunt in parallel to the galvanometer. A voltmeter is a device used to measure the potential difference between two points in a circuit.
What is the value of shunt resistance required if a galvanometer has resistance 50 Ohm?
Therefore, the required shunt resistance is 0.125 Ω.
What is the value of shunt resistance that allows 20\% of main current through the galvanometer of 99?
Therefore, the the value of shunt resistance that allows 20\% of the main current through a galvanometer of 99 Ω is 24.75Ω.
How do you convert a galvanometer to an ammeter?
To convert the given galvanometer of known resistance and of the known figure of merit into an ammeter of the desired range and to verify the same. For the conversion of galvanometer into the ammeter, shunt resistance is required. Following is the formula: S= Ig.G I−Ig S = I g.
How to design an ammeter to have a full-scale range?
For example, if we wanted to design an ammeter to have a full-scale range of 5 amps using the same meter movement as before (having an intrinsic full-scale range of only 1 mA), we would have to re-label the movement’s scale to read 0 A on the far left and 5 A on the far right, rather than 0 mA to 1 mA as before.
How are the resistances of an ammeter determined?
With such a meter design, each resistor value is determined by the same technique, using a known total current, movement full-scale deflection rating, and movement resistance. For an ammeter with ranges of 100 mA, 1 A, 10 A, and 100 A, the shunt resistances would be as such:
What is the resistance of a 30ohm galvanometer?
A galvanometer has resistance of 30ohm and a current of 2mA is needed to give a full scale deflection. What is the resistance needed and how is it to be connected to convert the galvanometer: (a) into an ammeter with a range of 0.3 ampere (b) into a voltmeter with a range of 0.2 volt