an electronic circuit needs a potential difference of 3.6V across a resistor when a current of 0.03A is in it. Would the voltage be 3.6V if the resistor had a resistance of 96 ohms
i = V/ R
.03 = 3.6 / R
R = 3.6 / .03 = 120 ohms so no
To determine the voltage across a resistor, you can use Ohm's Law, which states that V = I * R, where V is the voltage, I is the current, and R is the resistance.
In this case, the current (I) is given as 0.03A and the resistance (R) is 96 ohms.
Let's calculate:
V = I * R
V = 0.03A * 96 ohms
V = 2.88V
Therefore, the voltage across the resistor would be 2.88V, not 3.6V.
To determine if the voltage across the resistor would be 3.6V, we can use Ohm's law, which states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R):
V = I * R
In this case, the current (I) is given as 0.03A, and the resistance (R) is 96 ohms. Plugging these values into the equation, we can calculate the voltage (V):
V = 0.03A * 96 ohms
V = 2.88V
Therefore, if the resistor had a resistance of 96 ohms, the voltage across it would be 2.88V, not 3.6V.