Question

Какое гапряжение нужно приложить к проводнику сопротивлением 0,25 Ом, чтобы сила тока в проводнике была 30 А?

Answer 1

Из закона Ома I=U/R⇒U=I*R
U=30*0,25=7,5 В

Answer 2

Напряжение u=0,25*30=7,5 B

Answer 3

Calculating Voltage for Given Current and Resistance

To calculate the voltage needed to produce a current of 30 A in a conductor with a resistance of 0.25 Ω, we can use Ohm's law, which states that the voltage (V) is equal to the current (I) multiplied by the resistance (R), expressed by the formula: V = I * R.

Using this formula, we can calculate the voltage required:

V = I * R V = 30 A * 0.25 Ω V = 7.5 V

Therefore, the voltage that needs to be applied to the conductor with a resistance of 0.25 Ω to produce a current of 30 A is 7.5 volts.