Question

Consider the three basic quantities of a circuit: voltage (potential difference), current, and resistance.

In general terms, describe each one in your own words and its basic characteristic/property, and can you do an analogy of these quantities with a fluid system, say a stream of water?

Further, since many of you are in the medical field, can you relate a basic circuit and its components to a system of the body, maybe the circulatory system? If, what is the analogy between the basic circuit components to components of the circulatory system?

Please no handwritten or picture respones - only typed replies

Answer 1

three basic quantity of circuit : voltage , current , resistance

(1) voltage : voltage is measurement of potential energy between two source. when we connected voltage two the circuit then voltage will produced current flowing for the circuit.due to voltage difference current will start flowing through the circuit.voltage is obey ohm's law.

properties :

parallel circuit connection : voltage across the all component of circuit is remains same.

series circuit connection : in series connection , voltage across the circuit is equal to sum of all individual component's voltage.

voltage is measured in unit of volt.

(2) current : electric current is defined as flow of charge. it is flow of electron.current flowing is possible only due to voltage difference between two terminal of circuit.

when resistance oppose the current through circuit.resulting change in electrical energy in to heat , light or other form of energy. current is measured in to unit of ampere.

properties:

in parallel connection :

in parallel connection current is equally divided in to all component of the circuit.total current of the circuit is equal to individual sum of current in all component.

series circuit connection :

in series connection,current is equal in all component.

(3) resistance : resistance in electrical component that regulates the flow of current into the circuit.

question-2

yes we can compare our human body part with circuit component.

our heart is mainly responsible for flowing of blood in our body. so we can says heart is like voltage.heart will produced flow of blood in body.same as voltage will produced flow of current in to circuit.

we can says that our blood is like current in to circuit. blood in our body is flow through whole body.same as current is also flow in our circuit.

our body's dead or wet skin is like as resistance of the circuit.it make resistance to flow of current.while in circuit resistance oppose flow of current.