Question

Сила тока в проводнике сопротивлением 2 кОм равна 30 мА. Каково напряжение на проводнике???

Answer 1

R=2000 Om
I=0,030 A
U=0,03*2000=60B

Answer 2

Calculation of Voltage in a Conductor

To calculate the voltage in a conductor with a resistance of 2 kΩ and a current of 30 mA, we can use Ohm's Law. Ohm's Law states that the voltage (V) across a conductor is equal to the current (I) flowing through it multiplied by the resistance (R) of the conductor.

The formula for Ohm's Law is:

V = I * R

Substituting the given values into the formula:

V = 30 mA * 2 kΩ

To perform the calculation, we need to convert the current from milliamperes (mA) to amperes (A) and the resistance from kilohms (kΩ) to ohms (Ω).

1 mA = 0.001 A 1 kΩ = 1000 Ω

Converting the values:

V = (30 mA * 0.001 A) * (2 kΩ * 1000 Ω)

Simplifying the equation:

V = 0.03 A * 2000 Ω

V = 60 V

Therefore, the voltage on the conductor is 60 volts.

Please note that the calculation assumes the conductor is connected to a direct current (DC) power source.