Gabrielle asked in Science & MathematicsPhysics · 1 month ago

# Physics help with circuits?

1. What does it mean for two resistors to be connected in series in an electrical circuit?

What properties (voltage across, current through, resistance) are the same for each resistor in series?

2. What does it mean for two resistors to be connected in parallel in an electrical circuit?

What properties (voltage across, current through, resistance) are the same for each resistor in parallel?

Relevance
• 1 month ago

Given two resistors R1 and R2, if the resistors are in series, the power supply is connected to one end of, say R1, and the other end of R1 is connected to one end of R2. The other end of R2 is connected to the return lead of the power supply. For series resistances the current is the same in both resistors and the voltage across each resistor is proportional to the ratio of a particular resistor to the sum of the resistors.

For Parallel resistors, one end of each resistor is tied to one lead of the power supply and the other ends of both resistors are connected to the return of the power supply. The voltage is obviously the same across both resistors, but the current is V/R1 for resistor R1 and V/R2 for resistor R2.

Hope this helps.

• 1 month ago

two or more resistors are in series if they are connected end to end like cars in a RR train. one path in and one path out. They have individual voltage drops and the same current through them.

Two or more resistors are connected in parallel if they are connected to the same source and their outputs are connected to the same point. they have the same voltage across them and individual currents.

• oubaas
Lv 7
1 month ago

1.

What does it mean for two resistors to be connected in series in an electrical circuit?

terminal of one  connected to one terminal of the other

What properties (voltage across, current through, resistance) are the same for each resistor in series?

current through

2.

What does it mean for two resistors to be connected in parallel in an electrical circuit?

terminal connected together on both sides

What properties (voltage across, current through, resistance) are the same for each resistor in parallel?

voltage across

• 1 month ago

In series there must be no choice.   Electricity MUST pass through one and the other with no other path.

In parallel a junction exists where the electricity can reach a further point by moving through two or more different paths.

So for the series the electricity ( current ) must be the same in each part and the total energy lost ( volts) must be the sum of the amounts lost in each element.

In parallel as only SOME of the electricity is in each branch then the current is divided into the branches.  The sum of the currents is equal to the total current supplied.

As the energy in each piece of charge is the same the energy per charge lost in any branch is the same ie the volts are the same across each and any element in a parallel portion of a circuit.

• Ash
Lv 7
1 month ago

1. Two resistors in series

voltage across depends on the  resistors

current through them is the same

Total resistance is addition of individual resistances

2. Two resistors in parallel

voltage across them is the same

current through them depends on the individual resistances

Total resistance is given by the ratio of product  of individual resistances, to the sum of resistances

• 1 month ago

What kind of question is that? The same current flows through resistors in series while resistors in parallel experience the same voltage drop.