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An R equals 23.0-Ω lamp and a 5.0-Ω lamp are connected in series and placed across a potential difference of V equals 44.0 Vwhat is the current of the circuit?
Wiki User
∙ 13y ago
In a series circuit, resistances can be added directly whereas if they were wired in paralell you would add their inductances denoted by G instead of R and then take the reciprocal 1/Gtotal to find equivalent resistance. G = 1/R.
Series Ex.
23 ohms + 5 ohms = 28 ohms. and due to Ohms law V (volts) = I (amps) * R (ohms)
so I = V/R = 44/28 = 1.57 amps
Paralell ex.
Rtotal = 1/((1/23)+(1/5)) = 1/(.0435+.2) = 1/.2435 =4.1 ohms
therefore=> I = V/R = 44/4.1 = 10.7 amps.
Note this is the total current drawn from the power supply. In reality each resistor draws its portion of current where the lower resistance draws higher current and vice versa.
Wiki User
∙ 13y ago
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How is a series circuit different to a parell circuit?
The difference between a series and parallel circuit is that a series circuit is connected in such a way that the same current intensity flows through the elements while a parallel circuit is connected in such a way that the same potential appears across their terminals.
How is electrical current produced?
A potential difference (volts) is set up between the two ends of a conductor. If there are any electrons available to move, then their negative electric charges persuade them to move away from the more negative potential and toward the more positive potential, resulting in current.
When does current stop flowing in a circuit?
Current flows in a circuit when there is a difference in electronic potential between two points.
Does potential difference change with change in resistance?
Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current.
What happens in a circuit to voltage when current flows?
A: There is a relationship one needs the other both can coexists but not each alone.
If there are 2 points with different potential energy will there still be an electrical current through the circuit?
Not necessarily. The two points with potential difference, will have to be connected via a conductor, for current to flow.Provided that a circuit exists, then current WILL flow.
How do you connect a voltmeter in parallel circuit?
A voltmeter is used to measure potential difference across two points in an electrical circuit . The voltmeter is connected in parallel across the circuit element (resistance ) so that its inclusion in the circuit has negligible effect on total resistance and current flowing in yhe circuit A voltmeter has high resistance,if connected in series it will increase of circuit and reduce the current in the circuit
How is a series circuit different to a parell circuit?
The difference between a series and parallel circuit is that a series circuit is connected in such a way that the same current intensity flows through the elements while a parallel circuit is connected in such a way that the same potential appears across their terminals.
What is the flow of an electrical current in a circuit outside the power source?
Usually a circuit is connected to a power source, which could be a battery or an outlet. When this happens current flows through the circuit. The power supply raises electrical charges through the required potential difference, and then in the circuit the charges flow down the potential gradient giving up their energy.
What is required for current to flow through an electrical current?
Potential Source connected across a Closed Circuit Path.
How is electrical current produced?
A potential difference (volts) is set up between the two ends of a conductor. If there are any electrons available to move, then their negative electric charges persuade them to move away from the more negative potential and toward the more positive potential, resulting in current.
What type of current has steady potential difference across a circuit?
That would be DC or Direct Current.
When does current stop flowing in a circuit?
Current flows in a circuit when there is a difference in electronic potential between two points.
What happens to current in a simple circuit as potential difference is increased?
depends on the simple circuit. please describe it.
Can current flow in a circuit without potential difference?
A current cannot exist without voltage but voltage can exist without current.Simple example is battery. A battery has votlage even though it is not connected elsewhere.
Does potential difference change with change in resistance?
Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current.
What conditions are necessary for a current to be present in a circuit?
some resistance and potential difference
