Electricity Q: Current in Circuit w/ 8V DC?

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In a DC circuit with a power supply set to 8 volts, the current is not constant due to the presence of a variable resistor. According to Ohm's Law (I = V/R), the current (I) is directly related to the voltage (V) and inversely related to the resistance (R). As the resistance changes, the current will also change. This relationship indicates that adjusting the variable resistor will affect the current flowing through the circuit, confirming that the current is dependent on the resistance in the circuit.
Karate Chop
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Just a simple question, if u have an electric circuit that has a DC power supply, and you set it to 8 volts, u have an ammeter, lightbulb and variable resistor also in the circuit, does the current in the circuit change as the resistance changes, or is the current always constant?
 
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i am not sure but due to the fact that you have a variable resistor and the ammeter is ideal, the current isn't constant. i think it is related to Ohm's law:
I=V/R
 
For a series circuit, the relationship between voltage (V) and current (I) is given by V = IR, where R is the total resistance. So if you change the resistance, the current will change accordingly.
 
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