13. Sebuah solder dipasang pada tegangan 220 volt dan mengalirkan arus listrik sebesar 2 ampere. Jika solder tersebut dipakai selama 10 menit, berapakah besar energi listrik yang dipakai? a. 4400 kilo joule c. 63.360 kalori b. 264 kilo joule d. 4400 kalori

b. 264 kilo joule

The question asks to calculate the amount of electrical energy used by a soldering iron when it is connected to a 220-volt supply and draws a current of 2 amperes for a duration of 10 minutes. To find the energy consumed, we use the formula for electrical energy: where is the energy in joules, is the power in watts, and is the time in seconds.The power can be calculated using the formula: where is the voltage in volts, and is the current in amperes.Given that volts and amperes, the power is: watts.The time is given as 10 minutes, which needs to be converted to seconds: seconds.Now, substituting these values into the energy formula: joules.Since the options are given in kilojoules and calories, we need to convert joules to these units. 1 kilojoule is equal to 1,000 joules. Therefore, .The conversion factor from joules to calories is approximately 0.239005736 calories per joule. Therefore, .The closest match to the calculated values in the given options is 264 kilojoules.