A microwave oven can heat water of 305 g from 25.0° C to 100.0° C in 2.10 min.
(i) Determine at what rate is energy absorbed by the water?
(ii) Microwaves pass via a wave-guide of cross sectional area 88.0 cm2. Determine the average intensity of the microwaves in the wave-guide?
(iii) Determine the rms electric and magnetic fields within the wave-guide?