How is galvanometer converted into voltmeter?
How is galvanometer converted into voltmeter?
A galvanometer can be converted in to a voltmeter by connecting a high resistance in series connection within it. The scale is calibrated in volt. The value of the resistance connected in series decides the range of the voltmeter. The resistance is calculated by this equation which is connected in series.
How is a galvanometer converted into a voltmeter explain with diagram?
A galvanometer can be converted into a voltmeter by connecting a large resistance in series to the galvanometer which is shown in diagram. Let G and R be the resistance of a galvanometer and a conductor connected in series with it respectively.
How do you change a galvanometer into an ammeter voltmeter?
1 Answer
- A galvanometer is converted into a voltmeter by connecting a high resistance ‘R’ in series with it.
- A galvanometer is converted into an ammeter by connecting a small resistance (called shunt) in parallel with it.
- Resistance of voltmeter, RV = G + R.
What is difference between galvanometer into voltmeter?
The main difference between galvanometer and voltmeter is that a galvanometer is a type of device which has parts that move in response to an electric current, whereas a voltmeter is a device that is used to measure the potential difference (voltage) in a circuit.
How is galvanometer converted into a voltmeter Mcq?
Solution(By Examveda Team) A galvanometer is converted into a voltmeter by connecting with high resistance.
Why do we convert galvanometer into ammeter?
Solution : Let there be a galvanometer with a coil resistance G. Let it also shows a full deflection for current `I_(g)`. When a small resistance S known as shunt is connected in parallel to the coil then it can be used as an ammeter to measure current up to I, where, `I = ((S + G)/(S))I_(g)`.
Which is better galvanometer or voltmeter?
A galvanometer is a moderate resistance, While in ideal voltmeter should have infinite resistance hence the resistance of a voltmeter is very high.
What is difference between galvanometer ammeter and voltmeter?
It can be used as a voltmeter when resistance is connected in series with it. Ammeter is used to measure the magnitude of current….
| Difference Between Ammeter and Galvanometer | |
|---|---|
| It measures both the Alternate and Direct current | It measures only the direct current |
How a galvanometer is converted into ammeter?
Since, an ammeter must have very less resistance. So, a galvanometer can be converted into an ammeter by connecting a very small shunt resistance in parallel with the galvanometer resistance.
Why is a galvanometer not suitable to work as voltmeter?
Solution : A galvanometer shows a full scale deflection with a very small current. Hence a galvanometer can measure limited current. Therefore as such, a galvanometer can not be used as an ammeter, which can measure the given large current.
How do you convert an ammeter 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.
Why shunt is used in galvanometer?
A shunt resistance is connected in parallel to the galvanometer so as to keep the resistance low. Such low resistance galvanometer is used in series with the circuit to measure the strength of current through the circuit.
What is galvanometer explain?
galvanometer, instrument for measuring a small electrical current or a function of the current by deflection of a moving coil. The deflection is a mechanical rotation derived from forces resulting from the current.
How is a galvanometer converted into an ammeter Mcq?
Explanation: A galvanometer is converted to an ammeter by connecting a low resistance in parallel so that only a safe fraction of the current passes through the ammeter.
What is the working principle of a galvanometer?
A moving coil galvanometer works on the principle that a current-carrying coil placed in a magnetic field, experiences a torque. The coil springs along with the radial field ensure the deflection to be proportional to the strength of the current.
What is relation between galvanometer and voltmeter?
Galvanometer and voltmeter differ as follows: A galvanometer measures the current in the circuit while a voltmeter is a device that calculates the electrical potential difference between two ends in a circuit. The direction of current is measured by the galvanometer but the voltmeter doesn’t measure the current only.