Here's another question I'm not quite sure about. Its asking to determine it unmarked resistor's resistance value using Ohm's Law. Show calculations that result in the VI ratio of 600 ohms. However, do not exceed the power rating of 10 W.
With the given info of 600 ohms and 10 W, I can calculate for V using V=√PR=√(10)(600)=77.4V
I=V/R=77.4/600=129 mA
I guess with the given info on ohms and power that my answer is correct, but practically, wouldn't all I would need is an ohmmeter to measure the resistance or connect a voltage source across the resistor, with an ammeter in series to calculate the VI ratio for resistance. Any input is greatly appreciated. Thanks!
With the given info of 600 ohms and 10 W, I can calculate for V using V=√PR=√(10)(600)=77.4V
I=V/R=77.4/600=129 mA
I guess with the given info on ohms and power that my answer is correct, but practically, wouldn't all I would need is an ohmmeter to measure the resistance or connect a voltage source across the resistor, with an ammeter in series to calculate the VI ratio for resistance. Any input is greatly appreciated. Thanks!