Question

Резисторы , сопротивления которых 2 и 3 ком , соединены последовательно и подключены к источнику постоянного напряжения 15 вольт. Найдите силу тока в цепи и напряжение на каждом из резистров. С дано и решением , заранее спасибо)

Answer 1

Дано: R1=2 кОм R2=3 кОм  U=15 В  I-? U1-?  U2-?
R=R1+R2=2+3=5 кОм
I=U/R=15/5*10^3=3*10^-3 А
U1=I*R1=3*10^-3*2*10^3=6 В
U2=U-U1=15-6=9 B

Answer 2

R₁=2 Ом     применяем законы последовательного соединения:
R₂=3 Ом       1) общее сопротивление: R=R₁+R₂;
U=15 B                 R=2+3=5 Ом;
_________    2) сила тока: I=U/R;
I-?                         I=15/5 =3  A;
U₁-?              3) напряжение на каждом резисторе;
U₂-?                   U₁=IR₁;  U₁=3*2=6 B;
                          U₂=IR₂;  U₂=3*3=9 B;
                     Ответ: I=3A; U₁=6 B; U₂=9 B.

Answer 3

Calculation of Current and Voltage in the Circuit

To find the current and voltage in the circuit, we need to apply Ohm's Law and the rules for series circuits.

Given: - Resistance of the first resistor (R1) = 2 Ω - Resistance of the second resistor (R2) = 3 Ω - Voltage of the power source (V) = 15 V

Step 1: Calculate the total resistance (RT) in the circuit. In a series circuit, the total resistance is the sum of the individual resistances. Therefore, we can calculate RT as follows:

RT = R1 + R2

Substituting the given values:

RT = 2 Ω + 3 Ω = 5 Ω

Step 2: Calculate the current (I) in the circuit. Using Ohm's Law, we can calculate the current flowing through the circuit:

I = V / RT

Substituting the given values:

I = 15 V / 5 Ω = 3 A

Therefore, the current in the circuit is 3 Amperes.

Step 3: Calculate the voltage across each resistor. In a series circuit, the voltage across each resistor is the same as the total voltage of the circuit. Therefore, the voltage across each resistor is 15 V.

Therefore, the current in the circuit is 3 Amperes, and the voltage across each resistor is 15 Volts.

Please note that the provided sources do not contain specific information related to this calculation.