Question
3. (10 points) A 9-V battery has a rating of 1.8 kWh. The bulb draws a current of 100 mA when lit. a. What are watt-hours (Wh) a unit of? b. For how long (in hours) will the bulb stay lit? c. How much energy in Joules is contained in the battery? d. What is the battery's rating in ampere-hours?
Question image 1