Question

1)What are the differences and similarities between a series and parallel circuit?

2)Briefly describe the properties of the magnetic force?

Thanks!!!

Answer 1

differences and similarities between a series and parallel circuit

• In a series circuit, the current anywhere in the circuit is defined by the most important and basic law of electricity, known as Ohm's Law. Ohm's Law states that I = V/R, where I represents electrical current, V represents the voltage supplied by the source and R represents the total resistance -- opposition to the flow of electric current -- of the circuit. In a parallel circuit, the current in each branch of the circuit is inversely proportional to the resistance of each branch, and the total current is equal to the sum of the currents in each branch.

• In a series circuit, the total resistance is simply the sum of the resistances of the components connected to the circuit. In a parallel circuit, the fact that current can flow along more than one pathway means that the total overall resistance is lower than the resistance of any single component. The total overall resistance, Rt, can be calculated from the equation Rt = R1 + R2 + R3 ... Rn, where R1, R2, R3 and so on are the resistances of the individual components.

  Similarities

• Aside from the fact that they are both used to connect electrical components, such as diodes, resistors, switches and so on, together, there are few similarities between serial and parallel circuits. Series circuits are designed so that the current through each component is the same, whereas parallel circuits are designed so that the voltage through each component is the same.

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• Magnetic lines of force have the following important properties:
• They all have the same strength. The lines never cross one another.
• They seek the path of least resistance between opposite magnetic poles.
• They attempt to form closed loops from pole to pole.
• Their density decreases when they move from an area of higher permeability to an area of lower permeability.
• Their density decreases with increasing distance from the poles.
• They are considered to have direction as if flowing, though no movement occurs.
• They flow from the south pole to the north pole within a material, and north pole to south pole in the air

Answer 2

In a series circuit, the current anywhere in the circuit is defined by the most important and basic law of electricity, known as Ohm's Law. Ohm's Law states that I = V/R, where I represents electrical current, V represents the voltage supplied by the source and R represents the total resistance -- opposition to the flow of electric current -- of the circuit. In a parallel circuit, the current in each branch of the circuit is inversely proportional to the resistance of each branch, and the total current is equal to the sum of the currents in each branch. In a series circuit, the total resistance is simply the sum of the resistances of the components connected to the circuit. In a parallel circuit, the fact that current can flow along more than one pathway means that the total overall resistance is lower than the resistance of any single component. The total overall resistance, Rt, can be calculated from the equation Rt = R1 + R2 + R3 ... Rn, where R1, R2, R3 and so on are the resistances of the individual components. Similarities Aside from the fact that they are both used to connect electrical components, such as diodes, resistors, switches and so on, together, there are few similarities between serial and parallel circuits. Series circuits are designed so that the current through each component is the same, whereas parallel circuits are designed so that the voltage through each component is the same. --------------------------------------------- Magnetic lines of force have the following important properties: They all have the same strength. The lines never cross one another. They seek the path of least resistance between opposite magnetic poles. They attempt to form closed loops from pole to pole. Their density decreases when they move from an area of higher permeability to an area of lower permeability. Their density decreases with increasing distance from the poles. They are considered to have direction as if flowing, though no movement occurs. They flow from the south pole to the north pole within a material, and north pole to south pole in the air