Since baseboard heaters come in many different wattages vs. lengths I guess the best answer would be, you can load up to 2880 watts of baseboard heaters on a 15 amp two pole breaker at 240 volts.
The symbol for a home run on a breaker is a box with the number "4" inside it.
A 20 amp circuit with #12 gauge wire will work in any event but if the nameplate recommends a 15 amp circuit then #14 gauge wire on a 15 amp circuit is sufficient. In either case you will have a double pole breaker and your equipment may not require a neutral. Always run a grounding conductor.
To run a 500 watt 240 volt heater, you would need a 2.08 amp breaker. This can be calculated by dividing the wattage by the voltage (500W / 240V = 2.08A). You would typically round up to the nearest standard breaker size, which in this case would be a 3 amp breaker.
It is possible for a 12000 BTU air conditioner to run on a 15 amp breaker, but it may cause the breaker to trip if there are other appliances drawing power on the same circuit. It is recommended to have a dedicated circuit for the air conditioner to prevent overloading the breaker.
The number of window AC units that can run on a 110-volt breaker depends on the amperage rating of the breaker and the power consumption of each AC unit. Typically, a standard 110-volt circuit has a 15- or 20-amp breaker. If a window AC unit consumes around 5-8 amps, you could theoretically run one or two units on a 15-amp breaker, but it's crucial to consider the total load and avoid exceeding 80% of the breaker's capacity for safety. Always consult an electrician for specific recommendations based on your setup.
is it polesible to run a range of appliances on a single 15amp receptical
A 4 x 4 electronic display should run on standard a 110v 15amp plug. The displays don't draw that much power as most them run on LEDs. It can vary by model. What you can do is but a meter. you plug the machine into the meter and it will tell yu how much energy the machine uses.
The symbol for a home run on a breaker is a box with the number "4" inside it.
It would not take very much electricity to run a small pond fountain. If it is run 24 hours a day, it would probably cost less than 3 dollars per month.
It can run on one or two 1.5v AA batteries ...
A 20 amp circuit with #12 gauge wire will work in any event but if the nameplate recommends a 15 amp circuit then #14 gauge wire on a 15 amp circuit is sufficient. In either case you will have a double pole breaker and your equipment may not require a neutral. Always run a grounding conductor.
You can always run under a receptacles rating. This just means how much current can be drawn thru the breaker before it will trip.
Hybrids run either on electricity or on fuel.
Most tanning beds run about 100watts
It may be one of the coils that needs to run with a resistor. Check the normal application of that coil. If you need to pick up a resistor to make it run right, it would be a relatively inexpensive repair.
Microphones run on electricity.
If you mean installing a plug in your wall for the dryer, I advise calling an electrician unless you know someone who is very experienced and confident with electricity. A dryer requires 220 volts of electricity, twice what most home outlets deliver. A line has to be run from each side of your breaker box through the wall to the where you want the outlet to be (110 volts from each side of your breaker box). If you go to a large home/hardware store, they can show you the right plug to use. Again, electricity is very dangerous, especially when you are working directly with the service panel (breaker box) in your house. Please be safe.