Via algebra, of course. What have you tried?gungo said:I got 15 just by doing trial and error, and I'm pretty sure it's the right answer but how would you solve this using the equation?
Whoops I forgot about using algebra. I got it, thanks!gneill said:Via algebra, of course. What have you tried?
Resistance is a measure of how much a material or component impedes the flow of electric current. It is important to measure because it helps us determine the efficiency and safety of a circuit and can also provide useful information about the material properties of a component.
The resistance of a single resistor can be calculated using Ohm's law, which states that resistance (R) is equal to the voltage (V) divided by the current (I). In equation form, this is written as R = V/I.
The standard unit of resistance is the ohm (Ω). However, in some cases, other units such as kilohms (kΩ) or megohms (MΩ) may be used.
The most common way to measure the resistance of a single resistor is by using a multimeter. Set the multimeter to the ohm setting and then connect the probes to the ends of the resistor. The multimeter will display the resistance value in ohms.
Temperature can affect the resistance of a single resistor. In most cases, as the temperature increases, the resistance also increases. This is due to the fact that heat causes the atoms in the material to vibrate more, which can impede the flow of electric current.