If you have ten 20-watt lights running they take a power of 200 watts, continuously. If run for 5 hours they take 200x5 watt-hours of energy, which is 1000 watt-hours or 1 kilowatt-hour. That would register as 1 unit on a domestic electricity meter.
This does not depend on the voltage of the lamps.
If your cart has 4, 12 volt batteries in series to make up the 48 volts, just connect the 12 volt lights across one of the batteries.
no
Yes. Many 12 volt bulbs get very dangerously hot, for instance the 12 volt bulbs that are commonly used in vehicle headlights and in small 12 volt 50 watt overhead ceiling lights in homes.
With some difficulty. Easiest way would be with three lights connected in series, shining at the same time.
Yes.
If your cart has 4, 12 volt batteries in series to make up the 48 volts, just connect the 12 volt lights across one of the batteries.
no
Yes. Many 12 volt bulbs get very dangerously hot, for instance the 12 volt bulbs that are commonly used in vehicle headlights and in small 12 volt 50 watt overhead ceiling lights in homes.
I'm not sure. How many volts of homework did you have last week ?
16.81 amp.
With some difficulty. Easiest way would be with three lights connected in series, shining at the same time.
They make a 7.5 volt battery when put together
There is a 3.75 Volt drop across each bulb.
Yes.
Parallel.
To answer this question the amp/hours of the battery must be stated.
It can run about 1,200-2400 mAh.