Question

Амперметр, имеющий сопротивление 0,18 Ом, показывает силу тока 6 А. К амперметру присоединили шунт, сопротивление которого 0,02 Ом. Определить силу тока в магистраликакая формула хотябы

Answer 1

I=U/R, отсюда находим напрядение U=I*R=0.18·6=1.08 В, дальше по формуле I=U/R=1.08/0.02=54A . Ответ: 54 А

Answer 2

Calculating Current in the Main Circuit with Shunt

To calculate the current in the main circuit after connecting a shunt to an ammeter, you can use the formula for calculating the total current in a parallel circuit.

The formula to use is:

Total Current (I_total) = (I_shunt * R_main) / (R_shunt + R_main)

Where: - I_total = Total current in the main circuit - I_shunt = Current indicated by the ammeter with the shunt - R_main = Resistance of the main circuit - R_shunt = Resistance of the shunt

In this case, the values given are: - I_shunt = 6 A (current indicated by the ammeter with the shunt) - R_main = 0.18 Ω (resistance of the main circuit) - R_shunt = 0.02 Ω (resistance of the shunt)

Now, let's calculate the total current in the main circuit using the provided formula.