Question

В течение 15 мин по некоторому участку протекает электрический ток, значение которого 0,5 А. Напряжение на этом участке 8 В. Определите мощность и работу электрического тока, произведенную за это время.​

Answer 1

Ответ:4 Вт, 3600Дж

Объяснение:

мощность Р=I*U=0,5 А*8В=4 Вт

работа А=I*U*t= P*t= 4 Вт*900с=3600Дж

Answer 2

Calculating Power and Work of Electric Current

To calculate the power and work of an electric current, we can use the following formulas:

1. Power (P) can be calculated using the formula: \[ P = V \times I \] where \( V \) is the voltage and \( I \) is the current.

2. Work (W) can be calculated using the formula: \[ W = P \times t \] where \( P \) is the power and \( t \) is the time.

Given: - Current (\( I \)) = 0.5 A - Voltage (\( V \)) = 8 V - Time (\( t \)) = 15 minutes = 900 seconds

Calculating Power:

Using the formula \( P = V \times I \): \[ P = 8 \, \text{V} \times 0.5 \, \text{A} = 4 \, \text{W} \]

Calculating Work:

Using the formula \( W = P \times t \): \[ W = 4 \, \text{W} \times 900 \, \text{s} = 3600 \, \text{J} \]

So, the power of the electric current is 4 W and the work done by the electric current in 15 minutes is 3600 J.