Question

Два проводника сопротивлением 20 Ом и 30 Ом соединены последовательно.Сила тока цепи 15 А .определите полное сопротивление цепи,напряжение на каждом проводнике и полное напряжение

Answer 1

R1=20 Ом    R2=30 Ом   Io=15 A   Ro=?    U1=?   U2=?

Ro=R1+R2=20+30=50 Ом

U1=Io*R1=15*20=300 B

U2=Io*R2=15*30=450 B

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Answer 2

Calculation of Total Resistance:

To determine the total resistance of the circuit, we can use the formula for resistors connected in series: R = R1 + R2.

Given that the resistances of the two conductors are 20 Ω and 30 Ω, the total resistance of the circuit is:

R = 20 Ω + 30 Ω = 50 Ω

Calculation of Voltage and Current:

To calculate the voltage across each conductor and the total voltage, we can use Ohm's Law: V = I * R, where V is the voltage, I is the current, and R is the resistance.

Given that the current in the circuit is 15 A, we can calculate the voltage across each conductor:

Voltage across the 20 Ω conductor: V1 = I * R1 = 15 A * 20 Ω = 300 V

Voltage across the 30 Ω conductor: V2 = I * R2 = 15 A * 30 Ω = 450 V

To calculate the total voltage, we can add the voltages across each conductor:

Total voltage: V_total = V1 + V2 = 300 V + 450 V = 750 V

Therefore, the total resistance of the circuit is 50 Ω, the voltage across the 20 Ω conductor is 300 V, the voltage across the 30 Ω conductor is 450 V, and the total voltage is 750 V.