A resistance of `25 Omega` is connected to a 12V battery. Calculate the heat energy in joules generated per minute.

A solenoid of resistance 50 Omega and inductance 5mH is connected to 200V battery Calculate the maximum energy stored:

An electric room heater has a resistance of 25 Omega and operates at 220 V for 12 minutes. Calculate heat energy dissapated by it in kilojoules.

A conductor of resistance 25 Omega of diameter 0.2 mm is connected to a battery of 200 V . Calculate the current density for the conductor.

Three equal resistances, each of ROmega are connected as shown in figure. A battery of emf 2 V and internal resistance 0.1Omega is connected across the circuit. Calculate the value of R for which the heat generated in the circuit is maximum?

Three equal resistances, each of ROmega are connected as shown in figure. A battery of emf 2 V and internal resistance 0.1Omega is connected across the circuit. Calculate the value of R for which the heat generated in the circuit is maximum?

A network of resistors is connected to a 12V battery as shown in fig. a) Calculate the equivalent resistance of the network. b) Obtain current in 12Omega and 6Omega resistors.