- #1
diogo_sg
Hello. Something has been bothering me for a while now:
Consider a circuit with one battery and only one light bulb, for example. We have a value for the resistance of the bulb (R) and there is also one value for voltage (U) and one for current (I).
Now, let's imagine that we connect a new "loop" to this circuit, turning the latter into a parallel circuit. This new loop has yet another bulb (also with resistance R). From KVL, the voltage in this branch of the circuit will be the same as the other branch (U), correct?
But what about current (I')? Will it be the same as the other bulb's (I)? And what will happen to the latter (I)? Will it decrease, increase or remain constant? And why will that happen? Also, what would happen if the second bulb's resistance was bigger or smaller than the first one's (R' > R or R' < R)?
Thank you very much
Consider a circuit with one battery and only one light bulb, for example. We have a value for the resistance of the bulb (R) and there is also one value for voltage (U) and one for current (I).
Now, let's imagine that we connect a new "loop" to this circuit, turning the latter into a parallel circuit. This new loop has yet another bulb (also with resistance R). From KVL, the voltage in this branch of the circuit will be the same as the other branch (U), correct?
But what about current (I')? Will it be the same as the other bulb's (I)? And what will happen to the latter (I)? Will it decrease, increase or remain constant? And why will that happen? Also, what would happen if the second bulb's resistance was bigger or smaller than the first one's (R' > R or R' < R)?
Thank you very much