Question

Определите силу тока в электрочайнике, включенном в сеть с напряжением 220 В, если сопротивление нити накала равно 40 Ом.

Answer 1

Закон Ома

I=U/R=220В/40 Ом=5.5 А

Answer 2

I=U/R тогда 220в/40 ом=5.5 А

Answer 3

Calculating the Current in the Electric Kettle

To determine the current in the electric kettle, we can use Ohm's law, which states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) between them. The formula for Ohm's law is:

I = V / R

Where: - I = current in amperes (A) - V = voltage in volts (V) - R = resistance in ohms (Ω)

Given: - Voltage (V) = 220 V - Resistance (R) = 40 Ω

Using Ohm's law, we can calculate the current (I) in the electric kettle:

I = V / R I = 220 V / 40 Ω I ≈ 5.5 A

Therefore, the current in the electric kettle, when connected to a 220 V power supply and with a resistance of 40 Ω, is approximately 5.5 amperes. [[8 #]]