1)what potential differences must be applied across across a 1500 resistor in order that the resulting current be 50.mA?
V=IR=.05a*1500ohm=75volts
75 V
Why did the chicken cross the road? To get away from those potential differences! But seriously, to calculate the potential difference, you can use Ohm's Law, which states that V = I * R. So, with a current (I) of 50 mA and a resistance (R) of 1500 ohms, just plug in the values: V = 0.05 A * 1500 Ω. Voila! The potential difference across the resistor is 75 volts.
To determine the potential difference (voltage) required across a resistor to produce a specific current, you can use Ohm's Law. Ohm's Law states that the current flowing through a resistor is directly proportional to the voltage across it and inversely proportional to its resistance.
The formula for Ohm's Law is:
V = I * R
where V is the voltage (potential difference) across the resistor, I is the current flowing through the resistor, and R is the resistance of the resistor.
In this case, you want to find the voltage required to produce a current of 50 mA (0.050 A) across a resistor with a resistance of 1500 ohms.
Using Ohm's Law:
V = I * R
V = 0.050 A * 1500 Ω
V = 75 volts
Therefore, a potential difference of 75 volts must be applied across the 1500-ohm resistor in order to produce a current of 50 mA.
To determine the potential difference (voltage) required across a resistor to produce a certain current, you can use Ohm's law. Ohm's law states that the current passing through a resistor is directly proportional to the potential difference across it and inversely proportional to the resistance of the resistor.
Ohm's Law formula: V = I * R
Where:
V is the potential difference (voltage) across the resistor,
I is the current passing through the resistor, and
R is the resistance of the resistor.
In this case, we are given:
I = 50 mA (milliamperes) = 0.050 A (amperes)
R = 1500 Ω (resistance)
Now we can substitute the given values into the Ohm's law formula to find the potential difference (voltage):
V = (0.050 A) * (1500 Ω)
V = 75 V
Therefore, a potential difference of 75 volts must be applied across the 1500-ohm resistor to produce a current of 50 mA.