Question

Резистор R1 равно 300 ом и R2 равно 900 ом соединены последовательно если на Первом резисторе напряжение 60 Вольта общее напряжение на всём участке составило

Answer 1

I₁ = U₁/R₁=60/300= 0.2A

Так как резисторы соединенны последовательно токи у них равны

I₁=I₂= 0.2 A

U₂=I₂R₂ = 0.2 *900 = 180 В

Answer 2

Calculation of Total Voltage

To calculate the total voltage across the series combination of resistors R1 and R2, we can use Ohm's Law. Ohm's Law states that the voltage across a resistor is equal to the current flowing through it multiplied by its resistance.

In this case, since the resistors are connected in series, the current flowing through both resistors will be the same. Therefore, we can use the formula:

V_total = I * (R1 + R2)

Given that the resistance of R1 is 300 ohms, the resistance of R2 is 900 ohms, and the voltage across R1 is 60 volts, we can substitute these values into the formula to find the total voltage.

V_total = I * (300 + 900)

To find the value of I, we can use Ohm's Law again, this time for R1:

V_R1 = I * R1

Substituting the values, we have:

60 = I * 300

Solving for I, we find:

I = 60 / 300 = 0.2 Amperes

Now we can substitute the value of I into the formula for the total voltage:

V_total = 0.2 * (300 + 900) = 0.2 * 1200 = 240 volts

Therefore, the total voltage across the entire circuit is 240 volts.

Answer

The total voltage across the series combination of resistors R1 (300 ohms) and R2 (900 ohms) is 240 volts.