When a `50Omega` wire is connected extremely with 11 volt emf cell having internal resistance `50 Omega` then find potential difference and electric current.

A series combination of three resistances 1 Omega, 2 Omega and 3 Omega is connected with a cell of emf 1.5 V and of negligible internal resistance. What is the terminal potential difference across the third resistance?

A parallel combination of three resistances of 6 Omega, 12 Omega and 12 Omega is connected in series with an electric cell of emf 1.5 V and internal resistance 2 Omega . Find out the currents through the three resistances.

Three resistances of 4 Omega , 5Omega and 12 Omega are connected in parallel.A battery of emf 10 v and internal resistance 0.5 Omega . Is connected with that combination .Find out the currents through this battery and through each of this three resistances.

The length of the wire of a potentiometer is 100 cm and the emf of a standard cell connected to it is E volt. While measuring the emf of a battery having internal resistance 0.5Omega the null point is obtained at a length of 30 cm . Determine the emf of the battery .

5 electric cells are connected in series .Emf of each cell is 1.5 V and internal resistance is 0.1 Omega .When this combination of cells is connected with an external circuit of resistance 4 Omega, what will be the current through that resistance? What resistance should be connected instead of 4 Omega so that the current will be halved?

A resistor of magnitude 45 Omega is connected to an electric cell of emf 12V and of 3 Omega internal resistance. An ammeter of resistance 4.5 Omega and a voltmeter of resistance 405 Omega are properly connected with the resistor.What percentage errors is flowing current and potential difference will occur?

A cell of emf 1.4V and internal resistance 2 Omega is connected in series with a resistance of 100 Omega and an ammeter. The resistance of the ammeter is 4/3 Omega .To measure the potential difference between the two ends of the resistance a voltmeter is connected IF the reading of the ammter is 0.02 A.what is the resistance of the voltmeter?

A cell of emf 1.4V and internal resistance 2 Omega is connected in series with a resistance of 100 Omega and an ammeter. The resistance of the ammeter is 4/3 Omega .To measure the potential difference between the two ends of the resistance a voltmeter is connected IF the reading of the voltmeter is 1.10V, what will be its error?

A cell of emf 1.4V and internal resistance 2 Omega is connected in series with a resistance of 100 Omega and an ammeter. The resistance of the ammeter is 4/3 Omega .To measure the potential difference between the two ends of the resistance a voltmeter is connected .Draw the circuit