Question

Box A in the set up below represents an electric device often used/needed to supply electric power from the AC mains to a load. It is known that V0 less than Vi.
a)Identify the device A and draw its symbol.
b) Find the relation between the input and output currents of this device assuming it to be ideal.
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Answer 1

It is a step down transformer.

Answer 2

Box A in the set up below represents an electric device often used/needed to supply electric power from the AC mains to a load. It is known that V0 less than Vi are mentioned below.

• Parallel circuit is the device A and draw its symbol.
• Energy applies to the fact of the momentum of energy.
• In that case, the well-known factor is that energy is not to be created nor to be destroyed.
• Energy is measured in the standard unit of a joule.
• The energy is to be indifferent they are chemical energy, electrical energy and light energy.
• The energy formula was invented by Albert Einstein.
• Energy is done by the form of motion.
• Energy falls under the scalar quantity.
• Energy is an important factor for all kinds of work.
• Energy is an essential criterion for all kinds of things.
• Without energy, nothing can happen in this world.
• Energy falls in the movement of action and momentum.
• Power is the critical factor for the capacitor and resistance.
• The standard power unit is the watt; sometimes, it is measured in joules.
• Power is nothing but, it is the charge of the electric current.
• It is done between intervals of time.

• The power is the capacity of the work done.

Therefore, Box A in the set up below represents an electric device often used/needed to supply electric power from the AC mains to a load. It is known that V0 less than Vi are mentioned above.

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