A charge of 200 C passed through an electrical circuit with a voltage of 80 V. Find the work of the electric current in the circuit.
| February 4, 2021 | education
U = 80 V.
q = 200 Cl.
A -?
The work of the current strength A is determined by the Joule-Lenz law: A = U * I * t, where U is the current voltage, I is the current strength, t is the time of passage of the electric current.
According to the definition, the current strength is determined by the formula: I = q / t, where q is the charge that passes through the cross-section of the conductor, t is the transit time of the electric charge.
The formula for the electric current will take the form: A = U * t * q / t = U * q.
A = 80 V * 200 C = 16000 J.
Answer: the work of the electric current in the circuit is A = 16000 J.
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