0
How many watts will be consumed at 230v by a 12v x 50w lamp connected to a 230v supply via a transformer?
Wiki User
∙ 15y ago
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.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoYour 12v car battery is rated at around 40 ampere-hours. That means the energy stored is 12 x 40 or 480 watt-hours approximately.
That is 0.48 kilowatt-hours, or just under half a unit of electrical power.
Wiki User
∙ 11y agoThat depends on several things: the current rating of the output, the headroom in the regulator stage, and the basic design of the power supply, be it switched mode or linear mode, to name just a few.
Add your answer:
Earn +20 pts
Will a 300 watt low voltage transformer power 150 watts of bulbs 250 feet away?
no .it will not supply
How can you measure the ampere or watt for power supply?
You can measure the current and power of a 'power supply', using an ammeter and a wattmeter. With the power supply connected to its load, the ammeter must be connected in series with the power supply's input. The wattmeter's current coil must also be connected in series with the power supply's input, and its voltage coil must be connected in parallel with the supply, taking the instrument's polarity markings into account.
Can you use a 1000watts transformer with a 700 watts appliance?
Transformers are sized by the secondary connected load. If the wattage of the load is not given, use the following equation to find it. Watts = Amps x Volts.
How much does it cost to run a 5 watts transformer?
If the transformer uses 5 watts per hour you need to know what you are paying per 1000 watts from your power company. If you pay lets say $3.00 for 1000 watts then when your transformer burns 1000 watts it cost you $3.00 your cost will be $3.00 for 200 hours run time.
2 amps on a 240 volts supply how much is being consumed?
P = E x I P = 240 x 2 P = 480 Watts
Will a 300 watt low voltage transformer power 150 watts of bulbs 250 feet away?
no .it will not supply
Does a 600 watt garden lights transformer pull 600 watts all the time or just the load from the lights you have on it?
Watts are power. If the lights were mostly or totally switched off, you'd have a circuit generating 600W of heat somewhere if the transformer still took 600W, not only that, but when you switched on, the 600W that the transformer was consuming, would not disappear, so the total drain would be 1.2kW. ---- Don't understand the above answer. The 600 watts on the transformer nameplate is the maximum amount of wattage that the transformer can produce and still be within its safety limits. It doesn't draw that wattage all the time. If you had two 50 watt lamps connected to the transformer then the transformer has the capacity of 500 watts left. The transformer will only produce the wattage that the load requests. The transformer has the ability to supply twelve 50 watt bulbs. 12 x 50 = 600. Any more bulbs than 12 and the transformer is in an overload condition.
How can you measure the ampere or watt for power supply?
You can measure the current and power of a 'power supply', using an ammeter and a wattmeter. With the power supply connected to its load, the ammeter must be connected in series with the power supply's input. The wattmeter's current coil must also be connected in series with the power supply's input, and its voltage coil must be connected in parallel with the supply, taking the instrument's polarity markings into account.
What is theTransformer rating in a power supply?
a power supply must deliver xxx watts to a load the transformer must match the load capabilities plus its own loss
A resistor Connected to a 9 Volt supply dissipates 3 watts calculate the value of the resistance?
about 27ohms
Can you use a 1000watts transformer with a 700 watts appliance?
Transformers are sized by the secondary connected load. If the wattage of the load is not given, use the following equation to find it. Watts = Amps x Volts.
How much does it cost to run a 5 watts transformer?
If the transformer uses 5 watts per hour you need to know what you are paying per 1000 watts from your power company. If you pay lets say $3.00 for 1000 watts then when your transformer burns 1000 watts it cost you $3.00 your cost will be $3.00 for 200 hours run time.
Is it dangerous to run an appliance with more watts than the transformer?
A transformer has a rating that is usually expressed in KVA. This is approximately a wattage rating. It is not dangerous but it can be the cause of some concern. An appliance has a set current that is draws. This current times the voltage is the appliance's wattage. The same goes for the transformer. It only has a certain capacity to supply a specific current that is governed by its KVA (watts). Driving the transformer beyond its rated capacity tends to heat the transformer beyond its working temperature. If left in this over current draw the transformer's windings insulation will break down and the windings will short circuit. This is usually the end of a working transformer. So short answer, more watts (amps) from appliance equals burned out transformer.
2 amps on a 240 volts supply how much is being consumed?
P = E x I P = 240 x 2 P = 480 Watts
What are the uses of wattmeter?
Wattmeter is an intrument which is used to measure the power consumption of an Electric circuit or an appliance which is connected to the supply in terms of Watts.
What is 12v 60va equals in amps?
Enough to make your mother’s panties drop on the floor.
Why transformer rated kva?
The correct symbol for kilovolt amperes is 'kV.A, not kva. A volt ampere is the product of the transformer's secondary rated voltage and its rated current. It is not rated in watts, because the transformer designer has no idea what sort of load is to be applied to the transformer, and it is the load that determines the amount of watts, not the transformer.
