Ohm`s law

What formula shows the mathematical notation of the Ohm`s law?

• R = IU

• I = UR

• I = R/U

• I = U/R

What formulas can identify voltage and resistance from the Ohm`s law?

• U=IR

• U =I/R and R = U/I

• U = I/R

• R = U/I

• U=IR and R = I/R

What will be electric current intensity, if the voltage on a rheostat with the resistance of 600 Ohm is 12 V?

• 50 A

• 0.02 A

• 588 A

• 0.05 A

• 20 mA

Wire resistance is 30 Ohm, and its electric current intensity is 3 mA. What is the voltage value within the wire ends?

• 90 V

• 0,009 V

• 0,09 V

• 9 V

Identify the resistance of the spiral with the 0.5 A electric current intensity, and 120 V voltage within its ends

• 60 Ohm

• 0,004 Ohm

• 240 Ohm

• 24 Ohm

What is the equivalent resistance between K and M?

• 225 Ω

• 22,5 Ω

• 2,25 Ω

• 2250 Ω