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Would the brightness of a parallel circuit of 3 globes increase or decrease when a fourth is added?

The brightness would remain constant but the power draw will increase. If the circuit was series wired, the brightness would go down as you added bulbs.


What is a parralell curcuit?

• In a parallel circuit, there are junctions in the circuit so the current can flow around the circuit in more than one way. • In a series circuit the current decreases as more bulbs are added. •In a parallel circuit, as more bulbs are added, the current increases. • This is because bulbs added in parallel offer less resistance


In a parallel circuit with three bulbs?

All of the bulbs will become dimmer as more bulbs are added.


When a resistor is connected to a 25.0 V power supply the current through the resistor is 12.5 A.Calculate the resistance of a second resistor connected in series that reduces the current to 5.00 A.?

R2 = 3 ohms Explanation: For a circuit you can use ohms law where: V=I*R Where V is the voltage difference throughout the surface, I is the current, and R is the total resistance of the circuit. In your case you want to find the resistance so you have to change the formula to: R=V/I R of first circuit = 25volts/12.5amps = 2 ohms R of second circuit= 25 volts / 5 amps = 5 ohms The resistors here are connected in series which means that the resistance of the two can be added together. This gives you: Rtot= R1+R2 we found R of the first resistor by calculating the resistance in the first circuit. We also found Rtot which is the resistance in the second circuit, when you connect the two resistors together in series. Rtot=2 ohms+R2 5ohm=2ohms+R2 R2 = 3 ohms If the resistors where connected in parallel you cannot simply add the resistance. In that case: (1/Rtot)=(1/R1)+(1/R2) Hope that helps


How is adding a ammeter to a circuit different from adding a light bulb?

When you add a light bulb, you are adding a load, which performs a function - in this case, it converts electrical energy to light and heat energy. When you add an ammeter, most of the time you intend to measure the current in the circuit, which is the function of the ammeter. Thus the two electrical components differ in their function and does different things when added to a circuit.

Related Questions

What would happen if another bulb was added to another series circuit?

In a series circuit, if another bulb is added, it is going to dim.


When you add resistors that are in a series to a ciruit?

You raise the total resistance by that amount if added in series to a circuit. If you add them in parallel to a circuit then that total resistance will be less than the total of the added circuit.


What is total voltage in a series circuits?

In a series circuit the total voltage is the sum of the voltage drops across all the component in series. When the voltage drops across each the individual components are added up, they will equal the supply (or applied) voltage.


If a new bulb is added and the electrical circuit becomes dimmer is it a parallel circuit?

No it's series circuit.


How is resistance added in a series circuit?

Resistance in a series circuit is added by simply connecting resistors end-to-end. This results in the total resistance being the sum of the individual resistances. The current passing through each resistor in a series circuit remains the same.


When additional stops are added to a control circuit should they be connected in series or parallel?

series


If you have a DC passing through a circuit will the current decrease when you add a DC motor and if so by how much?

In the circuit where the DC motor is added, it was not specified whether the motor was added in series or in parallel to circuit elements. If it was added in series, it will increase circuit resistance and it will cause circuit current to go down. In parallel, the motor will reduce total circuit resistance, and circuit current will increase.


What happens to the current flow in a circuit when a second component is added in series?

The total current decreases.According to the Ohm's law the current & the resistance are inversely proportional so when we put a load in series with the existing load, the resistance of the circuit increases therefor the current decreases.


What would be different about the circuit if a resistor were added in series with the light bulbs?

The total current in the circuit will decrease.


How are ammeters added to circuits?

Ammeters are added in series to the circuit to be monitored.


Is resistance in a series circuit equal to the largest resistor in the series?

No. The resistance in a series circuit is all the resistor values added together. eg. If two resistors were in a circuit, one was 10 ohms and the other was 30 ohms, the resistance in the circuit would be 30 ohms. Hope this helps!


The differences between a series circuit and a parallel circuit?

In a series circuit, electrons flow through all the components one after another. If one fails (break), the whole circuit is no longer live. All the resistances are also added up in a series circuit. The current (measured in amps) is the same throughout the whole circuit. In a parallel circuit, electrons flow through smaller circuits all coming from the same source. The amperage is different in each circuit based on the resistance offered. The one wire running to all the smaller circuits has higher current than any of the small offset circuits. Removing one thing will not affect the other smaller circuits as electrons can still flow. Current will be affected, of course.