What type and size of resistor do I require to get a current of 5 to 10 milliamps at 24 Volts AC?

Question

What type and size of resistor do I require to get a current of 5 to 10 milliamps at 24 Volts AC?

Answer 1

resistance = voltage / current

24 volts / .005 amps (5 milliamps) = 4800 ohms

24 volts / .010 amps (10 milliamps) = 2400 ohms

So any resistance between 2400 and 4800 ohms could work. But lots of different types of resistors can have resistances in that range, so I guess that part's up to you.

Answer 2

If you want 5 to 10 milliamps rms then you need no more than 24/.005 = 4800 ohms and no less than 2400 ohms.  Standard values can be found here http://www.interfacebus.com/resistor_tab...

and it looks like you can get a 3300 ohm 5% tolerance that would do nicely ( cheap )  at  3300 ohms it will dissipate 24^2/3300 watts so get one with a 0.25 watt rating at least.

Answer 3

Are you serious? R=E/I.  Power can be understood br I^^2R