Respuesta :
There will be a secondary coil with 5000 turns as a result. The input for the following transformer is 220 volts and 30 amps.
Vp = input voltage of 12 V
Voltage output: Vs = 240 V
250 primary coil turns are one Np.
Ns = = turns on secondary coil?
Transformer definition
Ns/Np = Vs/Vp
Ns/250 = 240/12
Ns/250 = 20
Ns = 20×250
Ns = 5000
There will be a secondary coil with 5000 turns as a result.
Transformers, as its name implies, convert voltages between different values (The term voltage is used rather than emf, because transformers have internal resistance). For instance, a transformer is included into the plug-in unit of many mobile phones, computers, game consoles, power tools, and small appliances (see Figure 1), which transforms 120 V or 240 V AC into the necessary voltage for the item.
Transformers are also used in a number of locations throughout the power distribution networks. High voltages make it possible to transmit power over long distances because, as was already said, they need less current to do so, which lowers line loss. Transformers are utilized because greater voltages provide higher dangers.
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