In the circuit shows in Fig. `6.42`, resistors `X` and `Y`, each with resistance `R`, are connected to a `6 V` battery of negligible internal resistance. A voltmetre, also of resistance `R`, is connected across `Y`.

What is the reading of the voltmeter?

Shows a network of eight resistors battery of resistance R(= 2 Omega) connected in a 3V battery of negligible internal resistance. The current I in the circuit is

Two resistors 10Omega and 25Omega are connected in series and the combination is connected across a 25 V source of negligible internal resistance. A voltmeter of resistance 25Omega is connected across the 10Omega resistor. Find the reading in the voltmeter. If another voltmeter of a very large resistance replaces the voltmeter, then find the reading of voltmeter.

A voltmeter of resistance R_1 and an ammeter of resistance R_2 are connected in series across a battery oif negligible internal resistance. When as resistance R is connected in parallel to voltmeter reading of ammeter increases three times white that of voltmeter reduces to one third. Find R_1 and R_2 in terms of R .

Figure below shows two resistors R_1 and R_2 connected to a battery having an emf of 40 V and negligible internal resistance. A voltmeter having a resistance of 300 Omega is used to measure potential difference across R_1 Find the reading of the voltmeter.

An ammeter and a voltmeter of resistance R connected in seires to an electric cell of negligible internal resistance. Their readings are A and V respecitvely. If another resistance R is connected in parallel with the voltmeter

An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance . Their readings are A and V respectively . If another resistance R is connected in prallel with voltmeter