Question

R1-7=1ом,r=0,5ом,I=2А,Е=?

Answer 1

Ответ:

Е=15в

Объяснение:

при любом соединении получив R1-7=1om,

из ф-лы I=E/R+r найдём Е:

Е=I*(R+r)=2a*7.5=15в

Answer 2

To calculate the voltage (Е) in this circuit, you can use Ohm's Law, which states that voltage (V) is equal to the current (I) multiplied by the resistance (R).

Ohm's Law: V = I * R

Where: V = Voltage (in volts) I = Current (in amperes) R = Resistance (in ohms)

Given values: I = 2 A (amperes) R1 = 7 Ω (ohms) r = 0.5 Ω (ohms)

To find the total resistance (R) in the circuit, you need to consider the resistances in series:

R = R1 + r R = 7 Ω + 0.5 Ω R = 7.5 Ω

Now, use Ohm's Law to calculate the voltage (Е):

Е = I * R Е = 2 A * 7.5 Ω Е = 15 V

The voltage across the circuit is 15 volts.