I have three circuits here, a current of 100 mA through bulb A and a current of
ID: 1967681 • Letter: I
Question
I have three circuits here, a current of 100 mA through bulb A and a current of 70 mA through bulb B. Knowing this, what are the currents through the following, the given values are 30, 50, 70, 100, 140, and 200.
My basic knowledge is that the current starting from the battery has to end at the same level (current can increase of decrease going through a circuit. Knowing this I thought that the current through...
battery 1 = 100 mA ( I'm a little lost... answers but reasoning most of all would help. Thanks)
battery 2 = 70 mA
battery 3 = ?
bulb C = ?
bulb D = ?
bulb E = ?
Explanation / Answer
Since every component of circuit #1 and #2 both obey Ohms Law and are in series, then the current through each component of circuit #1 and #2 must be the same. So yes, "given" that the current through bulb A is 100mA, then the current through bulb #1 must be 100mA. Likewise, "given" that the current through bulb B is 70mA, then the current through battery #2 must be 70mA. I do not understand what you mean by "what are the currents through the following, the given values are 30, 50, 70, 100, 140, and 200"? What is given? What are these numbers? What do they have to do with the circuits? You have to be clear about what is given and what is to be found.