Дано E=2вольт Y=1А r=0.5ом r?

To find the value of r, we can use Ohm's Law equation:

V = I * R

Where: V = voltage in volts (E) I = current in amperes (Y) R = resistance in ohms (r)

We are given: E = 2 volts Y = 1 ampere

Substituting these values into the equation, we have:

2 = 1 * R

To find R, we can simply solve for it:

R = 2 ohms