Question

(1)(a) 10 W

(b) ​​​​​​

= 0.796 W/m2

(c) P = I A = 0.796 × 1

= 0.796 W

(2) (a) 10 W

(b) =  0.00796 W/m2

(c) Area = A = 10 cm × 10 cm

= 0.1 m × 0.1 m

= 0.01 m2

P = IA = 0.00796 × 0.01

= 8.0 × 10-5 W

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