An electric soldering iron connected to a 220V network consumes a current of 0.3 A.
| December 19, 2020 | education
An electric soldering iron connected to a 220V network consumes a current of 0.3 A. Determine the resistance of the electric soldering iron.
Given:
U = 220V
I = 0.3 A
Find: R -?
Decision:
I = U / R, Ohm’s law for a circuit section
R = U / I
R = 220 / 0.3 = 733, (3) Ohm ~ 733 Ohm
Answer: soldering iron resistance R = 733 Ohm
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.
