An electric metal melting furnace consumes 800 A at a voltage of 60 V. How much heat is generated
| August 30, 2021 | education
An electric metal melting furnace consumes 800 A at a voltage of 60 V. How much heat is generated in the furnace in 1 minute?
The amount of heat is determined by the formula
Q = I ^ 2 * R * T,
where
I is the consumed current;
R – resistance;
T is time.
Expressing resistance in terms of current and voltage
R = U / I.
Substitute the heat into the formula and find the desired
Q = I² * (U / I) * T;
Q = I * U * T;
Q = 800 * 60 * 1 * 60 = 2,880,000 J = 2.88 MJ.
Answer: 2.88 MJ.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
