0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How does the amount of current in a home circuit differ from the amount of current in a reading lamp?
The current in a reading lamp would be a small part of the total current in a home. For example, a home may have 100 amp service, while a reading light may draw less than 1 amp, so about 1% of the total.
What is the function of a capacitor in a fluorescent light fitting?
A capacitor is used to improve the power factor of the lamp.More detailsTo prevent the lamp from taking too much current a fluorescent lamp has to have a choke, which has magnetic inductance. The inductance has a negative impact on the power factor of the (the ratio between apparent power and real power taken by the lamp) - i.e. the power factor is reduced - so a capacitor is used to compensate for the inductance by improving the power factor so that it is closer to the ideal value of 1.Basically the inductor with the capacitor smooths out the voltage or current.
Three identical bulbs are connected in parallel with a battery of 6A If one of the bulb gets fused what will be the total current drawn from the battery?
As the lamps are identical, and all three draw a current of 6 A, then each lamp must be drawing 2 A. So, with one of the lamps disconnected, the current drawn from the supply will reduce to 4 A.
Can current flow both ways through a lamp?
Yes, we use AC (alternating current) in our homes, the current changes direction 120 times a second.
What is the resistance of 150-volt lamp with a current of 2amps?
75 ohms. R = E/I.
How hot does a 250w infrared heat lamp get?
A 250W infrared heat lamp can reach temperatures up to around 400-500 degrees Fahrenheit when operating at full power. The exact temperature can vary based on factors such as the design of the lamp and its surroundings.
Which lamp consumes more current?
A lamp with a higher wattage rating will consume more current. The higher the wattage, the more electricity the lamp will draw from the power source.
Can you use 250W metal halide bulb in a 1000W metal halide ballast?
No. The lamp has to match the ballast. The lamp will not ignite if the wrong ballast is used.
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 happens to the current in a circuit if more lights are added?
Assuming you are referring to house lamps, these are always connected in parallel with each other. Each lamp will draw a current, the value of which depends on the wattage of the lamps. As each lamp is added, the supply current will increase by the amount of current drawn by that lamp.
How much current will the lamp draw from the main line if a lamp is rated 40W and 220V?
The current drawn by the lamp can be calculated using the formula I = P/V, where P is the power (40 W) and V is the voltage (220 V). Substituting the values, I = 40 W / 220 V = 0.182 A. Therefore, the lamp will draw approximately 0.182 amperes of current from the main line.
An electric lamp is marked 250W 230V what does this mean?
This means that the lamp consumes 250 watts of power when operated at 230 volts. It indicates the electricity consumption and the voltage rating required for the lamp to operate efficiently.
Does a lamp with a thick filament draw more current or less current than a lamp with a thin filament?
A lamp with a thick filament will draw more current. What restricts the current flow in the filament is the resistance of the filament which increases as the temperature of the filament increases. A thin filament requires less energy to get heated up that a thick one so less current to achieve threshold resistance. Also a thick filament provides a broader path for current so there is less resistance per increase in degree centigrade. For these two (closely related but distinct) reasons it will require more current for the filament to get heated up to threshold resistance.
Does a lamp plugged in but not on draw electrical current?
No, a lamp plugged in but switched off does not draw electrical current. The switch on the lamp has the electrical circuit in the open position. In open circuits no current will flow. As soon as you close the circuit the lamp will start using power at a rate that is the wattage of the bulb. It is this wattage that you pay your utility company to supply.
Can you use a 250W Hps bulb in a 400W ballast?
It is not recommended to use a 250W HPS bulb in a 400W ballast as the ballast is designed to work with a specific wattage bulb. Using a lower wattage bulb can lead to inefficient operation, poor light output, and potential safety hazards. It is best to use a bulb that matches the wattage of the ballast for optimal performance.
How does the amount of current in a home circuit differ from the amount of current in a reading lamp?
The current in a reading lamp would be a small part of the total current in a home. For example, a home may have 100 amp service, while a reading light may draw less than 1 amp, so about 1% of the total.
Why starter used in tube light fitting?
The starter is used to help the lamp light and acts like a closed switch. It allows electric current to flow through the filaments.
