Current is calculated on the load. If your question on transformer primary current, then use the formula N1I1=N2I2, where N1 and N2 are primary and secondary coil turns and I1 and I2 are current in respective coils. This is very basic simple formula. You have reframe your question more specifically.
Secondary voltage / primary voltage
GPP (gross primary production) minus cellular respiration.
e.g. ORGANISM BIOMASS Grass 1000 Herbivores 300 Small Carnivores 28 Large Carnivores 6 1) from producer to primary = (300/1000)x100 2) from primary to secondary = (28/300)x100 3) from secondary to carnivores = (6/28)x100 Hope this helps :)
To calculate voltage per winding in a transformer, you can use the formula ( V_{winding} = \frac{V_{primary}}{N_{primary}} \times N_{winding} ), where ( V_{primary} ) is the primary voltage, ( N_{primary} ) is the number of turns in the primary winding, and ( N_{winding} ) is the number of turns in the winding of interest. Alternatively, for transformers, the voltage ratio can be determined by the turns ratio: ( \frac{V_{secondary}}{V_{primary}} = \frac{N_{secondary}}{N_{primary}} ). This allows you to find the voltage across any winding based on the primary voltage and the turns ratio.
The gross primary productivity equation used to calculate the rate at which plants convert solar energy into chemical energy through photosynthesis is: Gross Primary Productivity Rate of Photosynthesis - Rate of Respiration.
A turns ratio of 2000 to 100 is a 20 to 1 reduction in voltage, so the secondary, if the primary is 220 V, must be 11 V.
First find the ratio of the transformer. 6600/220 volts. Second find the secondary current, I = W/E, 99000/220. Third divide the secondary current by the transformer ratio. The answer will be the primary current. To check your answer (W (or VA) = V x A) multiply the primary current times the primary voltage and the secondary current times the secondary voltage and they should both equal the transformer's kVA.
The gross primary productivity formula is: Gross Primary Productivity Rate of Photosynthesis - Rate of Respiration. This formula calculates the amount of energy produced by plants through photosynthesis in an ecosystem.
DC Current divided by 1.225
The primary current on a loaded transformer depends on the secondary current, which is determined by the load. So, if you know the secondary load current, then you can use the turns ratio of the transformer to determine the primary current:Ip/Is = Ns/Np
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The primary current is determined by the secondary current. So, if you don't know the secondary current, you cannot work out the primary current.If the secondary isn't connected to the load, then the primary current is simply the primary voltage divided by the impedance of the primary winding.You can, though, work out the 'rated' primary current (i.e. the value of current the primary can carry, continuously). For a single-phase transformer, this will be its rated apparent power (in volt amperes) divided by its rated primary voltage. So, in this particular case, we are looking at:rated primary current = (50 x 103) / (11 x 103) = 4.55 A