An ohmic conductor has a resistance R = 100 Ω. It is crossed, for 30 min, by an electric current of intensity I = 0.50 A. a) Calculate the value W¹, of the thermal energy dissipated in this conductor. Give the answer in J and in kWh. b) Deduce the electrical energy consumed by this conductor for the same duration. c) Determine the value of the thermal power dissipated in this conductor. d) What will be the electrical energy W², consumed by this conductor, for a period of 30 min, if the value of the intensity I is doubled? Compare W¹ and W².