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How does the current in a light bulb connected to a 400 V source compare to the current when this light bulb is connected to a 60 V source?
Let's examine what it means when a bulb is 100W rather than 60W.
I'm assuming that you meant to state that they are 120V bulbs being connected to a 240V circuit1.
With the same voltage on each, and because power is voltage times current, the current must be greater in a 100W bulb than in a 60W bulb.
Since a incandescent bulb is a linear load, if you double the voltage then you double the current2. So the current through the 100W bulb is still greater than through the 60W bulb.
Or you may analyze it a bit more. With both on 120V, for more current to flow in the 100W bulb, the resistance of it must be less than that of the 60W bulb. So you may generalize that under any voltage (same voltage applied to each), the 100W bulb will always have more current through it than the 60W bulb.
1Actually, if they are 120V bulbs in a 240V circuit, there is a high probability that they will blow out. But before they do, this is what will happen.
2Well, slightly less than double, because the temperature coefficient on the filament is positive, so the hotter it is, the greater the resistance. Although this may seem nonlinear, a light bulb or other temperature sensitive resistive element is still defined as linear if over the short term it obeys Ohms law at any instant of the waveform.
The current in the 100 watt bulb will be greater. Power is current times voltage, so current is power divided by voltage. Voltage is the same is both cases of this question, so current is proportional to power at 240V.
What else can I help you with?
How much current flows in a 75-walt's light-bulb connected to a 110 voltage wall outlet?
The current flowing through the 75-watt light bulb connected to a 110-volt wall outlet can be calculated by using the formula: Power = Voltage x Current. Therefore, the current flowing through the light bulb would be approximately 0.68 amps.
If you are running a photoelectric effect experiment and your light source cannot create an electric current which adjustment might cause an electric current to flow?
Increasing the intensity of light or using a shorter wavelength light source can cause an electric current to flow in a photoelectric effect experiment. The energy of the photons should be increased to overcome the work function of the metal surface, allowing electrons to be ejected and generate a current.
What could be a source of resistance in a household electric circuit?
Heat
Is a light bulb a soure of light?
Yes, a light bulb is a source of light. When current is going through the filament the resistance generates enough heat that the filament glows, producing light.
What 2 parts of the light bulb need to be connected in order for it to light?
In order for a light bulb to light up, the filament and the base need to be connected. The filament is the part that emits light when electricity passes through it, and the base is where the electrical contacts are made to supply power to the filament.
What is the difference between light switch load and line connections in a circuit?
In a circuit, the line connection carries the electrical current from the power source to the light switch, while the load connection carries the current from the light switch to the light fixture. The line connection is typically connected to the hot wire, while the load connection is connected to the wire that leads to the light fixture.
Will the current in a light bulb connected to a 200-v source be greater or less than when the same bulb is connected to a 110-v circuit?
The current in the light bulb will be greater when connected to the 200-v source compared to the 110-v circuit, assuming the resistance of the light bulb remains constant. This is because current is directly proportional to voltage in an electrical circuit according to Ohm's Law (I = V/R), so a higher voltage will result in a greater current flow through the bulb.
How does the potential difference across the light when batteries are added in series compare to parallel?
When the batteries are connected in parralell, the voltage remains the same as a single battery, but the current capability is doubled. When connected in series, the voltage doubles at the light, but the current remains the same as if a single battery was connected. Ohm's Law E=IxR R=E divided by I I=E divided by R E=Voltage R=Resistance I=Current
How must the light bulb be connected in order for it to light up?
The light bulb must be connected in a closed circuit with a power source, such as a battery or electrical outlet, for it to light up. This means that the positive terminal of the power source must be connected to the positive terminal of the light bulb, and the negative terminal of the power source must be connected to the negative terminal of the light bulb. This allows the flow of electricity to power the light bulb and make it light up.
Why does a bulb in a circuit not work?
A light bulb is not lit when the swtich is not connected to the wire becasue there is no flow of electricity, specifically, flow of electrons. By disconnecting the wire, the bulb is no longer connected to the electricity source.
What do you use to make a amp or light fitting light up?
A lamp or light fitting will light up if connected to either Alternating Current (AC), or Direct Current (DC). AC is from the mains, and DC is from a battery. So it depends on the construction and components used to construct the lamp as to which electrical source you use.
What is a simple wiring diagram for a light switch?
A simple wiring diagram for a light switch involves connecting the power source to the switch, and then connecting the switch to the light fixture. The power source is typically connected to the switch through a black wire, and the switch is connected to the light fixture through a white wire. A ground wire is also connected for safety.
A string of 15 chrimas tree lights is connected in series to a 90 volt power source what is the value of the resistance of each light if the current flowing through the circuit is 2 amps?
3
Why resistors are connected parallel with current source?
The can be connected in parallel, in series, or in some combination. Household appliances are connected in parallel, because that way:1. Each appliance receives the full voltage. Results are thus more predictable. For example, a light bulb will give the same light, no matter whether it is the only light bulb, or whether others are also connected.2. Each appliance will continue working even if the others are switched off.
Is the amount of current that flows in the wire of electric circuit the same as the current that flows in the filament of the light connected in that circuit?
yes
How much current flows in a 75-walt's light-bulb connected to a 110 voltage wall outlet?
The current flowing through the 75-watt light bulb connected to a 110-volt wall outlet can be calculated by using the formula: Power = Voltage x Current. Therefore, the current flowing through the light bulb would be approximately 0.68 amps.
A string of 15 Christmas tree lights is connected in series to a 90 volt power source What is the value of the resistance of each light if the current flowing through the circuit is 2 amps?
33 ohms
