Draw a schematic diagram of a circuit consisting of a battery of three cells of 2V each, a `5Omega` resistor, an `8Omega` resistor, and a `12Omega` resistor, and a plug key, all connected in series.

A battery gives a current of 0.5A with an external resistor of 12 Omega and.0.25 A with resistor of 25 Omega Calculate the emf

Compare the power used in the 2Omega resistor in each of the following circuits : a 6 V battery in series with 1Omega and 2Omega resistors, and

How can three resistors of resistances 2Omega , 3Omega , and 6Omega be connected to give a total resistance of 4Omega ?

How can three resistors of resistances 2Omega , 3Omega , and 6Omega be connected to give a total resistance of 1Omega ?

Show how you would connect three resistors, each of resistance 6Omega , so that combination has a resistance of 9Omega .

Show how you would connect three resistors, each of resistance 6Omega , so that combination has a resistance of 4Omega .

200J of heat is produced each second in a 5Omega resistance. Find the potential difference across the resistor.

battery gives a current of 0.5A with an external resistor of 12 Omega and.0.25A with resistor of 25 Omega Calculate the internal resistance of the battery.

Redraw the circuit of Question 1, putting in an ammeter to measure the current throuch the resistor and a voltameter to measure the potential difference across the 12Omega resistor. What would be the reading in the ammeter and the voltameter?