Question

Мощность лампы 100вт. напряжение сети 220 в определите протекающий через лампу ток

Answer 1

P=100 Вт, U=220 В.  I-?   P=IU, I=P/U,
I=100/220=0,45 А.

Answer 2

Calculation of Current through a 100W Lamp with a 220V Power Supply

To determine the current flowing through a lamp with a power rating of 100W and a power supply voltage of 220V, we can use the formula P = U * I, where P represents power, U represents voltage, and I represents current. Rearranging the formula, we can solve for I:

I = P / U

Substituting the given values, we have:

I = 100W / 220V

Now, let's calculate the current:

I = 0.4545 A

Therefore, the current flowing through the 100W lamp with a 220V power supply is approximately 0.4545 Amperes (A).

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