Question

Определить сопротивление электрической лампы сила тока в которой 0,5 ампера при напряжении 120 В

Answer 1

I(сила тока)=U(напряжение)/R(сопротивление)
R=U/I => R=120/0.5=240Ом
Ответ:240Ом 

Answer 2

R=U/I=120/0.5= 240 Ом

если ответ лучший отметь

Answer 3

Calculating Resistance of the Electric Lamp

To determine the resistance of an electric lamp when the current passing through it is 0.5 amperes and the voltage across it is 120 volts, we can use Ohm's law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points. The formula for Ohm's law is:

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

Using the given values: - Current (I) = 0.5 amperes - Voltage (V) = 120 volts

We can calculate the resistance using the formula: R = V / I

Substituting the given values: R = 120 / 0.5

Calculation

``` R = 120 / 0.5 R = 240 ohms ```

Therefore, the resistance of the electric lamp is 240 ohms when the current passing through it is 0.5 amperes at a voltage of 120 volts. This calculation is based on the principles of Ohm's law