Determine at what rate is energy absorbed by the water


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?

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Physics: Determine at what rate is energy absorbed by the water
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