In a Battery, which energy is converted into Electrical energy?

A device that converts chemical energy into electrical energy is called -
1) motor
2) generator
3) battery
4) moving-coil meter

What is electrical energy converted to inside a toaster?

25.39. Consider the circuit of Fig. E25.30. (a) What is the total rate at which electrical energy is dissipated in the 5.0-1 and 9.0-12 resistors? (b) What is the power output of the 16.0-V battery? (c) At whatrate is electrical energy being converted to other forms in the 8.0-V battery? (d) Show that the power output of the 16.0-V battery equals the overall rate of consumption of electrical energy in the rest of the circuit.