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If each lamp is rated 12v 24w what is the current consumed by each lamp?
Dender
2 amperes in a parallel circuit. I = W/V. It is true provided that 12v are delivered to the lamps in parallel circuit. In a series circuit, the voltage is divided among the lamps so that the total current is probably 2 amperes for all lamps.
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∙ 16y ago
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What happens to the brightness of the bulbs in a parallel circuit?
A lamp's rated power only applies when the lamp is supplied with its rated voltage. If you connect the lamps in series, with the same supply voltage, then the lamps are no longer subjected to their rated voltage and, so, will not operate at their rated power.
What happens to the voltage of a series circuit as you add bulbs to the circuit?
For any lamp to operate at its rated power, it must be subject to its rated voltage. If you connect, say, three identical 120-V rated lamps across a 120-V supply, then each lamp will be subject to one-third of its rated voltage. As a result each lamp will not be able to achieve its rated power. If the lamps have different power ratings, then it is rather more complicated, with the most powerful lamp becoming the dimmest while the least powerful lamp becoming the brightest.
Why do the current readings differ for increasing and decreasing values of the incandescent lamp wattages?
While Voltage and Resistance typically remain constant in incandescent lamps: P (Power in Watts) = I (Current in Amperes) times E (Electrostatic energy in Volts [AC and DC]). P=I*E - when P (Watts) goes up so does I (Amps).
How do you find out total power of two lamps connected in series?
The rated powers, printed on each lamp, will no longer apply. You will need to measure the load current (I) drawn by the two lamps, together with the supply voltage (U), and multiply the two values together: Power = U I
Will the current I1 in a light bulb connected to 300 V be more or less than the current I2 when the same bulb is connected to 110 V?
R = V / I (Ohms Law) A greater voltage results in more current. In the particular case of a light bulb, the resistance will change with current because its temperature changes. We assume here that the bulb is rated to take 200V.
How do you find the power consumption of the fluorecent lamp?
Look on the lamp because somewhere on it the power consumption should be printed.AnswerThere is a legal requirement that a lamp's rated powerand rated voltage is shown on the lamp -often, this is printed on the glass envelope. Realise, however, that any variation from the rated voltage will result in a somewhat-larger variation in the rated power. An alternative method, of course, would be to connect a wattmeter into the lamp's circuit. Strictly-speaking, incidentally, power is NOT 'consumed', but merely tells us the rate at which ENERGY is consumed.
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.
What happens to the brightness of the bulbs in a parallel circuit?
A lamp's rated power only applies when the lamp is supplied with its rated voltage. If you connect the lamps in series, with the same supply voltage, then the lamps are no longer subjected to their rated voltage and, so, will not operate at their rated power.
How much current will the lamp draw from the main line if a lamp is rated 40W and 220V?
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Why is there less current in a circuit with four bulbs than there is in a circuit with one bulb?
yes because of bulb resistance :)
Will the current in the light bulb connected to a 220v source be greater or less than when the same bulb is connected to a 110v source?
A: The current is not a function of voltage available but rather the power needed to light the lamp. To answer your question a 100 watts lamp will require 1.83 times more current for a lamp rated as 100 watts at 120 volts.It is a basic ratio 220:120AnswerI disagree with the previous answer. The power rating of a lamp only applies when the lamp is subject to its rated voltage -which is why both values are shown on the lamp (e.g. 60 W / 120 V).So, if you subject a lamp to less than its rated voltage, it will not achieve its rated power. In fact, the decrease in power will be significantly greater than the corresponding decease in voltage. It will certainly not 'compensate' by drawing more current!However, to directly answer your question, the current drawn by a lamp connected to a 220-V supply will indeed be greater than the current drawn by the same lamp connected to a 110-V supply.
Why is that when an electric bulb stay just as its bright when connected to a parallel circuit?
To operate at its rated power, a lamp must be subject to its rated voltage (the supply voltage). As each branch of a parallel circuit is subject to the same voltage (the supply voltage), each lamp will operate at its rated power.
How many watts will be consumed at 230v by a 12v x 50w lamp connected to a 230v supply via a transformer?
This question doesn't make sense as asked. In your question, you say 50w lamp. That means the lamp will draw 50 watts. However, the lamp can't be a 230v lamp and a 12v lamp. In either case, most lamps are rated by actual wattage, so look on the side of the box or on the stamp on each lamp.
If I have a circuit with four lamps each lamp is individually connected across the circuit so that the same current is not flowing through each lamp What type of circuit is this?
Parallel Parallel
What appliance uses the larger current a toaster or a table lamp?
The toaster wins over a table lamp. To accurately measure this compare the wattage of each device.
When the three bulbs of sixty watts each is connected in series what is the formula used to calculate the total power?
The tree bulbs in series get each 1/3 of the usual voltage. Power is proportional volt squared. Each bulb uses then SQR of 60 = 7.746 watts. The total power will be 3 times 7.746 watts = 23.238 watts.
A series circuit has two 2 w lamps in it and a 12 volt battery and a third 2 w lamp is added what happens?
the current iin each lamp will be smaller than before, but the voltages passing through each lamp will stay the same as before.
