Convert the current to amperes, then (using Ohm's Law), divide voltage by current.
No, 200mA is not the same as kilohms.Amperes is a unit of current flow. Ohms is a unit of resistance. Other than being related by Ohm's law - Voltage = amperes x ohms - the two units are not the same.
200ma is .200 amps or .2 amps
Yes. Yes, you can replace a transformer with one that has a higher current rating. The load on the transformer should be less than 200mA because presumably that is what the circuit was designed for. Since the current through the transformer should be less than 200mA, the 500mA transformer will not be damaged. The opposite is not true. You should not replace a 200mA rated transformer with a 100mA transformer, for example. If the current exceeds 100mA, the transformer could fry.
Yes. The current rating should be the same or greater than the original. This means the adapter can supply up to 500mA; In your case it only needs to supply 200mA, so it is more than up to the job.
50 mA generally stands for 50 milliamperes. A milliampere is a measure used for small electrical currents.
18 Volts.
Yes, one outputs 200 mA of current and one outputs 10x that much current. There is also a very good chance that the circular plug will be a different size.
No. The adaptor will overheat.
There are, 2000/1000 = ,amps in 2000 milliamps. For the math challenged that is 2 amps.
1st writer: You have Ohms law written wrong, here is an easy formula to use to get the right answer: V/IxR but the answer is .2 Amps (note the right answer) 2nd writer: You both have it written wrong. Ohm's Law is V=IxR. This can be used to solve Voltage, Current and Resistance with two givens. Then, when Power is presented through Watt's Law (P=IxV), you are able to solve for any of the four also with two givens. http://www.aob.com.au/resources.html Here's OUR set-up: I=V/R This is the substitution: I=12V/60Ω Answer=0.2A OR 200mA
Yes. There's a subtle difference in the meaning of the "--- ma" labels on the two units:-- On the "device" ... the unit that uses power ... the "200ma" is the current it useswhile it's operating.-- On the "adapter" ... the unit that supplies power ... the "800ma" is the maximumcurrent that it's able to supply. Anything less than that is easy.So your adapter is OK to operate your device. In fact, with suitable wiring and a bit ofcooling, it could nominally operate 4 of them at the same time.
DVD players are low energy users. Although they may show a peak current of up to 1 amp as they are turned on, while they are running, they are typically using between 20 - 35 Watts. That translates to a current draw of about 100mA from a 230 Volt supply and 200mA from a 110V supply.