The current consumed by the DC motor from the 220 V network was 10 A for 15 minutes.
| August 3, 2021 | education
The current consumed by the DC motor from the 220 V network was 10 A for 15 minutes. Determine the energy consumed by the engine?
To find the energy consumed by the engine in use in 15 minutes, we apply the formula (Joule-Lenz law): Q = U * I * t.
Variable values: U – mains voltage (U = 220 V); I – consumed current (I = 10 A); t – duration of work (t = 15 min = 900 s).
Calculation: Q = U * I * t = 220 * 10 * 900 = 1.98 * 10 ^ 6 J = 1.98 MJ.
Answer: In 15 minutes, the engine used consumed 1.98 MJ of energy.
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.
