Resistors in series and parallel

  • Thread starter thisisfudd
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  • #1
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A 3 ohm resistor is connected in parallel with a 6 ohm resistor. This pair is then connected in series with a 4 ohm resistor. These resistors are connected to a battery. What will happen if the 3 ohm resistor breaks?

I think that the power dissipated in the circuit will increase.

The other choices are that the current in the 4 ohm resistor will drop to 0, that the current in the 6 ohm resistor will increase and that the current provided by the battery will not change.

I think I am right because the 4 ohm is connected to two parallels, it will therefore not change. Is this reasonable?
 

Answers and Replies

  • #2
609
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both answers are wrong... and not reasonable...
draw the graph first, and "see" what's going on....
imagine current is an incompressible fliud in water pipe
 
  • #3
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OK, so the current provided by the battery will change: it will decrease. I think the current in the 6 ohm resistor might increase because it is no longer connected in parallel to anything else. Is this correct?
 
  • #4
85
1
I am thinking the same thing too
Becuase current does not split into two ways any longer after it left the 4 ohms resistor, so the current would increase
 

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