Question

Write the principle and working of an ideal voltmeter.name it.how can the sensitivity of this instrument be increased​

Answer 1

Answer:

The main principle of voltmeter is that it must be connected in parallel in which we want to measure the voltage. For an ideal voltmeter, we have the resistance is to be infinity and hence the current drawn to be zero so there will be no power loss in the instrument.

The sensitivity of voltmeter of moving coil type can be increased either by increasing the value of G or by reducing the value of K.