Question

5. Спираль утюга длиной 2 м изготовлена из нихрома, а площадь его поперечного сечения равна 0,1 мм^2. Какова мощность утюга, если он рассчитан на напряжение 220 В?​

Answer 1

Ответ:

.......

Объяснение:

Answer 2

Calculation of the Power of the Iron

To calculate the power of the iron, we need to use the formula:

Power (P) = Voltage (V) x Current (I)

In this case, we are given the voltage (V) as 220 V. However, we need to find the current (I) flowing through the iron. To find the current, we can use Ohm's Law:

Resistance (R) = Voltage (V) / Current (I)

The resistance can be calculated using the formula:

Resistance (R) = Resistivity (ρ) x Length (L) / Area (A)

Given that the length (L) of the iron spiral is 2 m and the cross-sectional area (A) is 0.1 mm^2, we can calculate the resistance (R) of the iron spiral.

Let's calculate the resistance first:

Resistance (R) = (Resistivity (ρ) x Length (L)) / Area (A)

From the given information, we know that the iron spiral is made of nichrome. However, we don't have the specific resistivity value for nichrome. Therefore, we cannot calculate the resistance accurately without this information.

To proceed with the calculation, we need the specific resistivity value for nichrome. Could you please provide the specific resistivity value for nichrome?