please i need help solving this problem, what is the resistance of a resistor if the potential difference across the resistor is 4.0 V when a current of 10.0 A flows through the resistor?
r=V/I
A current of 1ampere is supplied to two resistor of resistances 2ohm's and 3ohm's connected in parallel.calculate the current in each resistor.
To find the resistance of a resistor, you can use Ohm's Law, which states that the resistance (R) is equal to the potential difference (V) divided by the current (I).
In this case, the potential difference across the resistor is given as 4.0 V, and the current flowing through the resistor is 10.0 A.
Using the formula R = V / I, we can substitute the given values:
R = 4.0 V / 10.0 A
Now, divide 4.0 by 10.0:
R = 0.4 Ω
Therefore, the resistance of the resistor is 0.4 ohms.