Question

Электрическая лампа имеет сопротивление 448 Ом. Вычисли мощность тока в лампе, если она рассчитана на напряжение 220 В. Мощность тока в лампе равна Вт. Ответ округли до целых!СРОЧНО

Answer 1

P=IU
I=U/R
I=220/448=0,5 A
P=0,5*220=110 Вт

Answer 2

Calculation of Current Power in the Lamp

To calculate the current power in the lamp, we need to use Ohm's Law, which states that the current flowing through a conductor is equal to the voltage across the conductor divided by the resistance of the conductor.

The formula for calculating power is:

Power (P) = Voltage (V) / Resistance (R)

Given: Resistance (R) = 448 Ω Voltage (V) = 220 V

Let's substitute the given values into the formula to calculate the current power in the lamp:

Power (P) = 220 V / 448 Ω

Calculating the value:

Power (P) = 0.49107142857 V

Rounding the answer to the nearest whole number, the current power in the lamp is approximately 0.49 W.

Please note that the power is rounded to two decimal places as per the given instructions.