If we decrease the voltage passing through a circuit, (suppose that

[poohbearhug]

if we decrease the voltage passing through a circuit, (suppose that the amount of resistance encountered by the voltage remains the same/constant), the current passing through the circuit will be most likely to decrease as well. Similarly, if the voltage decreases (the current remains constant), the resistance is expecting to decrease also


IS THIS CORRECT? PLEASE HELP ME.

 

[Bloodthunder]

if we decrease the voltage passing through a circuit, (suppose that the amount of resistance encountered by the voltage remains the same/constant), the current passing through the circuit will be most likely to decrease as well.

Yes, V = IR.

Similarly, if the voltage decreases (the current remains constant), the resistance is expecting to decrease also

While it's the same equation, it doesn't work that way. Resistance is a characteristic of the circuit you have, and you'll have to change the circuit in some way to change the resistance so as to be able to maintain the same current as voltage decreases.

 

[berkeman]

if we decrease the voltage passing through a circuit, (suppose that the amount of resistance encountered by the voltage remains the same/constant), the current passing through the circuit will be most likely to decrease as well. Similarly, if the voltage decreases (the current remains constant), the resistance is expecting to decrease also


IS THIS CORRECT? PLEASE HELP ME.

Welcome to the PF.

Correct so far. What is the context of your questions?

 

[poohbearhug]

Thank you for that answer. I learned a lot. But I have one more question.

What will be the effect on each combination(series and parallel) of resistors if one of the resistors is removed? Why?

 

[Bloodthunder]

You know how resistors in series and parallel works, right?

R_total = R_1 + R_2... for series
1/R_tot = 1/R_1 + 1/R_2... for parallel

Remove a resistor in parallel, calculate change yourself.
Remove a resistor in series, circuit is now off.

 

[poohbearhug]

thank you. i wish i could understand that.

 

[Bloodthunder]

Could look at the wiki page for more information. What resistors in series and in parallel are are described in there.

http://en.wikipedia.org/wiki/Resistor