Calculating Current and Power

The video tutorial explains how to calculate the current, resistance, and energy consumption of a heater using given power and voltage values. It also covers the cost calculation of energy consumed over two hours, with a specific price per kilowatt-hour. The tutorial provides step-by-step instructions for each calculation, ensuring a clear understanding of the concepts involved.

What are the given values in the problem statement?

• 6 kilowatt and 240 volt

• 3 kilowatt and 210 volt

• 5 kilowatt and 230 volt

• 4 kilowatt and 220 volt

How do you calculate the current if the power is 4 kilowatts and the voltage is 220 volts?

• By subtracting the voltage from the power

• By adding the power and the voltage

• By multiplying the power by the voltage

• By dividing the power by the voltage

What is the calculated current value?

• 18.18 amperes

• 20.20 amperes

• 22.22 amperes

• 15.15 amperes

What is the next step after calculating the current?

• Calculate the voltage

• Calculate the power

• Calculate the resistance

• Calculate the energy consumption

If one kilowatt hour is priced at 4.60, what is the cost of energy consumed in two hours?

• 9.20

• 27.60

• 36.80

• 18.40