Dielectric heating apparatus consists o?

1.	Dielectric heating apparatus consists o?
A.	4 electrodes
B.	Elemental strip
C.	No Insulating material
D.	4 plates
Answer» C. No Insulating material

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A slab of insulating material of thickness 6 cm and thermal conductivity 1.4kJ/m hr deg is placed between and is in contact with two parallel electrodes, and is then subjected to high frequency dielectric heating at a uniform rate of 140,000kJ/m3 hr. At steady state coefficients of combined radiation and convection are 42 and 48 kJ/m2 hr deg. If atmospheric temperature is 25 degree Celsius, find surface temperatures?
The given expression can be used to solve the electrode temperature t w1 and t w2q g δ = h 1 α 1 + h 2 α 2Where, α 1 = A (t w 2 – t a) and α 2 = (t w1 – t a).
Dielectric heating apparatus consists of
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A slab of insulating material of thickness 6 cm and thermal conductivity 1.4kJ/m hr deg is placed between and is in contact with two parallel electrodes, and is then subjected to high frequency dielectric heating at a uniform rate of 140,000kJ/m3 hr. At steady state coefficients of combined radiation and convection are 42 and 48 kJ/m2 hr deg. If atmospheric temperature is 25 degree Celsius, find surface temperatures?$
Dielectric heating apparatus consists o?
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Dielectric heating apparatus consists o?

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