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Power is measured in Watts,
power (Watts) = E (volts) x I (current - amps)
current is determined by the internal resistance (R) of the lightbulb, the lower the resistance the more current will flow.
120v x 0.5a = 60W
120V x 0.83a = 100W
the 100W lightbulb will draw more current
We also have Ohm's law: E(volts) = I (amps) x R (ohms)
Household voltage stays the same at 120v
we have for a 100w lamp:
120v = I x R
R = 120v/0.83 amps
R = 144.6 ohms
for a 60w lamp:
120v = I x R
R = 120v/0.5 amps
R = 240 ohms
The higher watt lamp has lower resistance.
What else can I help you with?
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.
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.
How do you drop the 600-volt output power of a fluorescent ballast to use for an LED lamp?
You don't. The output of a ballast is for one purpose only and that is to operate the lamp that is designed for that ballast. You should be careful with high output ballasts as they can draw enough milliamps to lock your muscles up if the current is shorted through you.
What is the function of ignitor in lamp?
The ignitor in a lamp is responsible for creating a high voltage pulse to initiate the discharge of the lamp. It helps to start and maintain the electric current flow through the lamp, ensuring that it lights up properly.
How much amps take 12v 50w halogen lamb?
To calculate the current, you can use the formula: current (in amps) = power (in watts) / voltage (in volts). So, for a 50W halogen lamp operating at 12V, the current draw would be approximately 4.17 amps (50W / 12V = 4.17A).
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.
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 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.
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.
How can calculate amps for 12V 50W halogen lamp in 230V input?
It would be pretty much undefined, since the filament of the halogen bulb would fail immediately then there would be an open circuit with no current draw. <<>> The formula for current is Amps = Watts/Volts. The lamp itself would draw 4.16 amps. Since the voltage of the lamp is 12 volts there is a internal transformer involved in the fixture itself. It doesn't matter what the input (primary) voltage to the transformer is, so long as it meets the manufacturer's specification as to the proper voltage to operate the fixture.
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.
How do you drop the 600-volt output power of a fluorescent ballast to use for an LED lamp?
You don't. The output of a ballast is for one purpose only and that is to operate the lamp that is designed for that ballast. You should be careful with high output ballasts as they can draw enough milliamps to lock your muscles up if the current is shorted through you.
What is the function of ignitor in lamp?
The ignitor in a lamp is responsible for creating a high voltage pulse to initiate the discharge of the lamp. It helps to start and maintain the electric current flow through the lamp, ensuring that it lights up properly.
Can you show me how to draw an alcohol barner?
Can you show me how to draw an alcohol lamp?
Does a lamp with a thick filament draw more 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.
How much amps take 12v 50w halogen lamb?
To calculate the current, you can use the formula: current (in amps) = power (in watts) / voltage (in volts). So, for a 50W halogen lamp operating at 12V, the current draw would be approximately 4.17 amps (50W / 12V = 4.17A).
