Question

Электрическая плитка при силе тока 5 А за 25 мин потребляет 1,08 МДж энергии. Рассчитайте сопротивление плитки.​

Answer 1

Ответ:

2880 Ом

Объяснение: Забыл квадрат

Ответ в вложении

Answer 2

Ответ:

..........................

Answer 3

Calculation of Resistance of Electric Stove

To calculate the resistance of an electric stove, we can use Ohm's Law, which states that the resistance (R) is equal to the voltage (V) divided by the current (I). In this case, we are given the current (5 A) and the power (1.08 MJ) consumed by the stove.

The power consumed by an electrical device can be calculated using the formula: P = V * I, where P is the power, V is the voltage, and I is the current.

Given that the power consumed by the stove is 1.08 MJ (1 MJ = 1,000,000 J) and the time is 25 minutes (25 * 60 seconds), we can calculate the power in watts (W) as follows:

P = 1.08 MJ = 1.08 * 10^6 J t = 25 minutes = 25 * 60 seconds

The power (P) can be calculated as follows:

P = E / t, where E is the energy consumed.

Therefore, the power (P) is:

P = (1.08 * 10^6 J) / (25 * 60 s)

Now, we can calculate the resistance (R) using Ohm's Law:

R = V / I

Since we know the power (P) and the current (I), we can calculate the voltage (V) using the formula:

P = V * I

Therefore, the voltage (V) is:

V = P / I

Now, we can substitute the values into the formula to calculate the resistance (R):

R = V / I = (P / I) / I = P / I^2

Let's calculate the resistance:

R = (1.08 * 10^6 J) / (5 A)^2

R = 216,000 J / 25 A^2

R = 8,640 Ω

Therefore, the resistance of the electric stove is 8,640 Ω.