While this is true, I didn't want to increase the applied voltage to maintain the same current. I wanted to show the effect that changing one resistance in a series circuit would have on the circuit.The correct interpretation of this information is that: if you increase the resistance in a circuit, and you want to maintain the same current, you must do something to increase the voltage applied to the circuit
If only one resistance in a series circuit containing more than one resistance is increased, the voltage drop across THAT resistance WILL increase. Since the applied voltage remains the same, and the sum of the voltages dropped by each resistor is equal to the applied voltage, the voltage dropped by the other resistors in the circuit must decrease. The current will also decrease due to the increase in total resistance.it is not the case that increasing the resistance in a circuit will increase the voltage.
Correct. When dealing with individual resistors, we can apply Ohms Law to each one, using the information posted above about voltage and current in series and parallel circuits.You are correct, Ohms Law should be: E = I x R
I have corrected my previous post.
If only one resistance in a series circuit containing more than one resistance is increased, the voltage drop across THAT resistance WILL increase. Since the applied voltage remains the same, and the sum of the voltages dropped by each resistor is equal to the applied voltage, the voltage dropped by the other resistors in the circuit must decrease. The current will also decrease due to the increase in total resistance.
This change in voltage is easily demonstrated with a few resistors, a battery and a voltmeter.
Total voltage, no, but voltage through that individual resistor in a series circuit (see fleet's post above). In a parallel circuit, voltage is constant across all branches, so increasing resistance of one or all branches will not affect the voltage through them, just the current. Of course, you're usually going to be dealing with a combination of series and parallel.I see. Increasing resistance doesn't increase voltage, it decreases current (under most circumstances). Thanks!
Oh, I see what you were getting at. That makes sense. Sorry if I seemed overzealous there.While this is true, I didn't want to increase the applied voltage to maintain the same current. I wanted to show the effect that changing one resistance in a series circuit would have on the circuit.The correct interpretation of this information is that: if you increase the resistance in a circuit, and you want to maintain the same current, you must do something to increase the voltage applied to the circuit
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