Question

R=18 Oм I=0,6 A E=12 В r=?

Answer 1

Ответ:

r  = 2 Ом

Объяснение:

U = RI = 18*0,6 = 10,8 B

r = (E-U) / I = (12-10.8) / 0.6 = 2 Ом

Answer 2

To calculate the resistance (r), we can use Ohm's Law, which states:

$R = \frac{E}{I}$

Where: R = Resistance (in ohms, symbolized by the Greek letter omega, Ω) E = Voltage (in volts, V) I = Current (in amperes, A)

Given that E = 12 V and I = 0.6 A, we can plug in these values to find the resistance (r):

$r = \frac{E}{I} = \frac{12\text{ V}}{0.6\text{ A}} = 20\text{ Ω}$

So the resistance (r) is 20 ohms.