The dimensions of thermal resistance are
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(a)Thermal resistance
$ = \frac{l}{{KA}} = \left[ {\frac{L}{{ML{T^{ - 3}}{K^{ - 1}} \times {L^2}}}} \right] = [{M^{ - 1}}{L^{ - 2}}{T^3}K]$
$ = \frac{l}{{KA}} = \left[ {\frac{L}{{ML{T^{ - 3}}{K^{ - 1}} \times {L^2}}}} \right] = [{M^{ - 1}}{L^{ - 2}}{T^3}K]$
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