Question

Срочно Сила тока в лампочке фонарика равна 0,57 А. Чему равно сопротивление нити накала лампочки, если она подключена к батарейке напряжением 5,19 В?

Answer 1

Calculation of Resistance

To calculate the resistance of the filament in the light bulb, we can use Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I). In this case, the voltage is 5.19 V and the current is 0.57 A.

Using the formula: R = V / I, we can calculate the resistance as follows:

R = 5.19 V / 0.57 A

Calculating this expression, we find that the resistance of the filament in the light bulb is approximately 9.11 ohms.

Please note that the resistance value may vary depending on the specific characteristics of the light bulb and the accuracy of the measurements.