Can we change the range of voltmeter?

The range of a given voltmeter can both be increased and decreased. has to be connected in series to the coil of the galvanometer. On the other hand, to decrease the range of the voltmeter, R has to be decreased. It can be done by putting a suitable resistance in parallel with the resistance .

Can we increase or decrease the range of ammeter and voltmeter?

We can increase the range of the given ammeter by using a suitable shunt in parallel with the ammeter but we can not decrease the range of the ammeter of the reason explained in the above question.

Why do we need to extend the range of voltmeter?

Now let us learn about the extension of the measuring range of voltmeters. Due to difficulty in measuring high voltages with normal voltmeters, it is, therefore, necessary to bring those high values to normal values that can be measurable by voltmeters. This process is called the extension of range of voltmeter.

How do you increase voltage range?

To increase the ranges of a voltmeter, we need to connect a high multiplier resistance in series with voltmeters. To increase the ranges of ammeter, we need to connect a small shunt resistance in parallel with ammeters.

How do we extend the range of electrostatic voltmeter?

By varying the resistance r of the portion to which an electrostatic voltmeter is connected, the range of the electrostatic meter can be extended.

Can we increase or decrease the range of the ammeter?

The range of ammeter can be increased but cannot be decreased. The reason is that a series resistor cannot change the current that will produce full deflection.

How can we increase the range of 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.

How can voltmeter be increased?

The range of voltmeter can be increased by connecting a suitable high resistors in series with it. 2. The range of a voltmeter can decreased by reducing its resistace. This can be done by putting a suitable resistance in parallel with the voltmeter.

Can we increase the range of 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 you increase voltage?

To increase the voltage, we connect the AC voltages in series to get a higher output voltage. If the frequency of all the voltages are the same, the magnitude of the voltages simply add.

What is generating voltmeter?

A Generating Voltmeter Principle and Construction is a variable capacitor electrostatic voltage generator which generates current proportional to the applied external voltage. The device is driven by an external synchronous or constant speed motor and does not absorb power or energy from the voltage measuring source.

How the range of DC ammeter and DC voltmeter can be extended?

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.