3. An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length 2.7 m is connected to an electric heater which draws 18.0 A on a 240 V line. One wire takes current to the heater, the other acts as the return. How much power is dissipated in the cord? (a) 56 mW (b) 5.6 W (c) 22 W (d) 4.3 kW
3. An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length 2.7 m is connected to an electric heater which draws 18.0 A on a 240 V line. One wire takes current to the heater, the other acts as the return. How much power is dissipated in the cord? (a) 56 mW (b) 5.6 W (c) 22 W (d) 4.3 kW
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3. An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of
length 2.7 m is connected to an electric heater which draws 18.0 A on a 240 V line. One
wire takes current to the heater, the other acts as the return. How much power is
dissipated in the cord?
(a) 56 mW
(b) 5.6 W
(c) 22 W
(d) 4.3 kW
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