12 ∙ 10 ^ 19 electrons pass through the cross-section of the conductors in 2 s.

| June 3, 2021 | education

12 ∙ 10 ^ 19 electrons pass through the cross-section of the conductors in 2 s. What is the current in the conductor. Electron charge 1.6 ∙ 10 ^ -19 C.

t = 2 s.

N = 12 * 10 ^ 19.

q = 1.6 * 10 ^ -19 Cl.

I -?

The strength of the current I is the ratio of the electric charge Q passed through the cross section of the conductor to the time of its passage t: I = Q / t.

Since N = 12 * 10 ^ 19 electrons have passed through the cross section of the conductor in time t, and each electron carries an elementary charge q = 1.6 * 10 ^ -19 C, the total charge is expressed by the formula: Q = N * q.

The formula for determining the current strength will take the form: I = N * q / t.

I = 12 * 10 ^ 19 * 1.6 * 10 ^ -19 / 2 s = 9.6 A.

Answer: the current in the conductor is I = 9.6 A.



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.