give complete solution

ACTIVITY 2 : CALCULATING ENERGY AND POWER IN ELECTRIC CIRCUITS Directions : Read, understand and analyze each of the problems very carefully. Then, solve and show your complete solutions. Encircle your final answer. (5points each) 1. What is the power consumption of an electric iron if its resistance is 13.1 Q and it operates on a household circuit with a voltage of 120 V? 2. A flashlight lamp connected to a battery that provides 1.4 V draws a current of 0.10 A . What electric power is used by the lamp? 3. The label on a toaster reads 800 W at 120 V . How much current does it draw? 4. A 100 Q resistor is rated at 1.00 W maximum power capacity. a. What is the maximum voltage that can be applied across the resistor without exceeding its maximum power rating? b. What is the current at this voltage ? 5. Find the power dissipated in each of these extension cords: (a) an extension cord having a 0.0600 Q resistance and through which 5.00 A is flowing; (b) a cheaper cord utilizing thinner wire and with a resistance of 0.300 0. 6. A drilling machine operates with an electric power consumption of 840W. How much does it cost to operate the machine continuously for eight hours if the electricity costs P 5.012 per KWh ? 7. A 150 W street lamp is operated for 12 hours a day. How much energy does it take to operate the lamp for 30 days ? Express your answer in kilowatt hours 8. How much does it cost to operate a 100- W lamp hours a day for 30 days if electricity costs 12. 45 / KWh ? 9. How many joules of energy are necessary to run a washing machine for 30 minutes if it is hooked up to a 220-V line and has a resistance of 10 ohms? 10. A 800 C flow through a flashlight with 5 ohms of resistance and is on for 30 minutes. How much power was used