What is the power of a heating coil which has a resistance of 40 ohms 2 points when it takes in a current of 5A? O 1500 J/s O 1000 J/s O 8 J/S O 500 J/s The 18.0-ohm coil of a loud speaker carries a current of 0.8 ampere. The 2 points potential difference across the terminals is 5.2 V 2.3 V 6.4 V 10.0 V A wire 15 meters long has a diameter of 5 mm. Find the resistivity of the 2 points wire if its resistance is 0.4 ohm. O 4.32 x 10^-6 ohm-meter O 5.24 x 10^-7 ohm-meter O 6.35 x 10^-8 ohm-meter 7.46 x 10*-8 ohm-meter