lock in ‘meter’ capable of being charged to 2.4 x 106 Volt potential before sparking into the air, given that dielectric strength of air is 24,000 V/cm.   (ii) Find the heat energy(flow) in ‘Joules’ required to prepare a coffee in an electric kettle with 0.5 litre (1litre = 10-3 m3 ) of water which is heated from 30ºC to 85ºC?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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(i) Find the thickness of an isolated block in ‘meter’ capable of being charged to 2.4 x 106
Volt potential before sparking into the air, given that dielectric strength of air is 24,000
V/cm.

 

(ii) Find the heat energy(flow) in ‘Joules’ required to prepare a coffee in an electric kettle
with 0.5 litre (1litre = 10-3 m3
) of water which is heated from 30ºC to 85ºC?
Take density of water as 1000 kg /m3
and Specific heat of water as 4.187 kJ/kg º K.

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