A developing story hope it helped
The complete question is how much heat energy is delivered by the iron in 30 seconds.
Heat is given by IVt, Where I is the current in Amperes, V is the voltage, and t is the time in seconds,
Therefore;
Heat energy = 120 × 10 ×30
= 36000 joules or 36 kJ
Heat energy is measured in joules.
Boyles law describes pressure volume relationship at constant temperature pressure is directly proportional to volume at constant tamparature
The base unit of time in the metric and SI system is the second.
