Question

Какая работа была совершена в проводнике электрическим током силой 800 мА за время 2 мин., если напряжение на концах проводника составляет 20 В?

Answer 1

A=qU

q=It

считай сама__________

Answer 2

Calculation of Work Done by Electric Current

To calculate the work done by an electric current, the formula W = V * I * t can be used, where: - W = work done (in joules) - V = voltage (in volts) - I = current (in amperes) - t = time (in seconds)

Given: - Current (I) = 800 mA = 0.8 A - Voltage (V) = 20 V - Time (t) = 2 minutes = 120 seconds

Using the formula W = V * I * t: W = 20 V * 0.8 A * 120 s

Calculation

W = 20 V * 0.8 A * 120 s = 1920 J

Therefore, the work done by the electric current with a strength of 800 mA for 2 minutes, with a voltage of 20 V, is 1920 joules.