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Alinara [238K]
3 years ago
9

1. A wall is made up of four elements, as follows:

Physics
1 answer:
balu736 [363]3 years ago
8 0

Part A)

Since all four resistors are made up of different elements and connected in series

SO in series the net resistance is given by

R = R_1 + R_2 + R_3 + R_4

R = 0.81 + 0.62 + 10.9 + 0.45

R = 12.78

Part B)

If insulation is removed then resistance due to three materials

R = R_1 + R_2 + R_3

R = 0.81 + 0.62 + 0.45

R = 1.88

Part c)

Heat will always flow from High temperature to low temperature

So here heat flow is from 90 degree F to 70 degree F

so it will flow from outside to inside

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