Question

Электрическая плита при силе тока 10А за 20мин потребляет 1060кДж энергии рассчитайте сопротивление и мощность силы ​

Answer 1

Ответ:

Объяснение:

Дано:

I = 10 A

t = 20 мин = 1200 c

Q = 1 060 кДж = 1 060 000 Дж

________________

R - ?

P - ?

Из закона Джоуля-Ленца:

Q = I²·R·t

сопротивление:

R = Q / (I²·t) = 1 060 000 / (10²·1200) = 8,8 Ом

Мощность:

P = I²·R = 10²·8,8 = 880 Вт

Answer 2

Calculating Resistance and Power

To calculate the resistance and power, we can use the following formulas:

1. Resistance (R) can be calculated using the formula: \[ R = \frac{V}{I} \] where \( V \) is the voltage and \( I \) is the current.

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

Given: - Current (\( I \)) = 10A - Time (\( t \)) = 20 minutes = 1200 seconds - Energy (\( E \)) = 1060 kJ = 1060 * 1000 J

Calculating Power

The power can be calculated using the formula: \[ P = \frac{E}{t} \] where \( E \) is the energy and \( t \) is the time.

Using the given values: \[ P = \frac{1060 \times 1000}{1200} \] \[ P \approx 883.33 \, W \]

Calculating Resistance

To calculate the resistance, we need the voltage. Since the voltage is not provided, we can't directly calculate the resistance without this information.

If you have the voltage, you can use the formula: \[ R = \frac{V}{I} \] where \( V \) is the voltage and \( I \) is the current.

Without the voltage, it's not possible to calculate the resistance with the given information.

If you have the voltage, please provide it, and I can help you calculate the resistance.