An experimental polar probe's climate control system consists of 8 identical miniature heating elements connected in series with a 36 V DC power supply.
What is the voltage across each heating element in the series circuit?
Each heating element has a power of 6.75 W. State the equation linking power, current, and voltage.
Show that the current in the circuit is 1.5 A.
The heating elements are switched on for 4 hours a day for 5 days. Calculate the total energy transferred during this time in joules (J).
Describe the main energy transfers that take place in each heating element when they are connected to the power supply.