Two identical bodies, the charges of which are 5 µC and –15 µC. brought into contact. What were the charges of these bodies after that?
q1 = 5 μC;
q2 = -15 μC;
It is required to find q3 bodies after they have been brought into contact.
According to the law of conservation of electric charge:
After the bodies are brought into contact, their total charge is equal to:
q = q1 + q2.
Then, they were pulled apart:
q3 = q / 2 = (q1 + q2) / 2 = (5 – 15) / 2 = -5 μC.
Answer: the charge became equal to -5 μC
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.