Question

Два резистора сопративлением 6 Ом и 10 Ом включены в цепь последовательно. Какое количество теплоты выделится в каждом резисторе за 2 минуты если напряжение на втором равно 20 В. СРОЧНО!!!!!!!!!!​

Answer 1

Ответ: 2880Дж; 4800Дж

Объяснение:

Дано:

R1=6 Ом

R2=10 Ом

t=2мин=120с

U2=20В

--------------------

Q1-?; Q2-?

Соединение последовательное, значит ток в цепи будет одинаковый.

I=U2/R2=20/10=2А

Q1=I²R1t=2²*6*120=2880Дж

Q2=I²R2t=2²*10*120=4800Дж

Answer 2

Calculating Heat Generated in Resistors

When two resistors are connected in series, the total resistance is the sum of the individual resistances. In this case, the resistances are 6 ohms and 10 ohms, so the total resistance is 16 ohms.

The formula to calculate the heat generated in a resistor is given by H = I^2 * R * t, where: - H is the heat generated, - I is the current flowing through the resistor, - R is the resistance of the resistor, and - t is the time for which the current flows.

Given that the voltage across the second resistor is 20 volts, we can calculate the current flowing through the circuit using Ohm's law: I = V / R.

Let's calculate the current flowing through the circuit and then use it to find the heat generated in each resistor for 2 minutes.

Calculating Current Flowing Through the Circuit

Using Ohm's law, the current flowing through the circuit can be calculated as follows: - For the total resistance of 16 ohms and voltage of 20 volts, I = V / R = 20 / 16 = 1.25 A.

Calculating Heat Generated in Each Resistor

Now, we can use the formula H = I^2 * R * t to calculate the heat generated in each resistor for 2 minutes: - For the 6-ohm resistor: H = (1.25)^2 * 6 * 2 = 18.75 J. - For the 10-ohm resistor: H = (1.25)^2 * 10 * 2 = 31.25 J.

So, the amount of heat generated in the 6-ohm resistor is 18.75 J and in the 10-ohm resistor is 31.25 J for 2 minutes with a voltage of 20 volts across the second resistor.

These calculations are based on the provided electrical parameters and formulas for heat generation in resistors