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As an example imagine a 60 W light bulb running off 120 V. The current will be 1/2 A. Now assume that you put a second 60 W bulb in series with the first. Now the resistance of the single 60 W bulb is 240 Ohms. The 1/2 A flowing through the bulb heats up the filament wire and causes an amount of light to be emitted. Resistance in series adds, so the total resistance for two of the bulbs in series is 480 Ohms and by Ohms law V = I x R, the current through each bulb will be 1/4 amp and hence the bulbs will be less bright.
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What happens when a curcuit is closed?
To close a circuit in electrical terminology is to close any open devices that are in series with a connected load. Once this happens the current will flow through the load and the load is then termed as energised. In the case of a motor circuit the motor will operate. In the case of a lighting circuit the lamps in the circuit will energise and light the area in which they are installed.
When one resistance or load in a series circuit gets defective the circuit becomes?
The circuit will become an open circuit.
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.
if load is wired in a circuit that has multiple switches in series with it What conditions must be present in order for the load to be energized?
In order for the load to be energized in a circuit with multiple switches in series, all the switches must be closed or in the "on" position. This is because switches in series function like an "AND" gate in digital logic, requiring all inputs to be true for the output to be true. If any one of the switches is open or in the "off" position, the circuit will be open and the load will not receive power. Therefore, all switches must be closed to complete the circuit and energize the load.
How is ammeter and voltmeter attached to a circuit?
Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.
What does a load do to the flow of electrical current in a series circuit?
A load increases the flow of electrical current in a series circuit. No load, no flow.
What happens when a curcuit is closed?
To close a circuit in electrical terminology is to close any open devices that are in series with a connected load. Once this happens the current will flow through the load and the load is then termed as energised. In the case of a motor circuit the motor will operate. In the case of a lighting circuit the lamps in the circuit will energise and light the area in which they are installed.
Does a battery last longer in a series or parallel circuit?
A battery doesn't see a series or parallel circuit. It just supplies the current that is demanded by the load be it a series or parallel load. Visualize that a single load across a battery is both a series and parallel load to the battery.
When one resistance or load in a series circuit gets defective the circuit becomes?
The circuit will become an open circuit.
Why are series circuit used for most control circuit?
Because The opening of any switch in a series circuit will open the circuit and stop the flow of current to the load
How does a house use a series circuit?
The most common form of a series circuit in a house is a circuit breaker (optionally in series with an on-off switch) in series with a load, usually a light bulb.
How do you connect a ammeter into a circuit?
connect ammeter in series with load.
A series circuit has 100mA flowing through a 1.5kohm load What is the power dissipated by the load?
A series circuit has 100mA flowing through a 1.5kohm load. The power dissipated by the load is equivalent to 15 Watt. This is based on the formula, power is equals to square current times load.
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.
When did the series circuit started?
dc ckt are only started with load...
A fuse or circuit breaker used in a circuit is usually inserted in?
A fuse or circuit breaker used in a circuit is usually inserted in series with the load.
Why circuit breaker are connected in series with load?
Because it needs to be able to cut the power to the load. That's why circuit breakers are always the first piece of equipment in a circuit after the power supply.
