The Student Room Group

charge question

can someone explain why the answer to this is C? i'm baffled

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Reply 1
sketch-1496512018811.jpg
Hope it makes sense
C is the only one where current (flow of electrons charge) decreases
Original post by spofy
can someone explain why the answer to this is C? i'm baffled

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(edited 6 years ago)
Reply 2
Original post by c4c4
sketch-1496512018811.jpg
Hope it makes sense
C is the only one where current (flow of electrons charge) decreases


oooooohhhhhh wow i was looking at equations with Q for charge the whole time hahaahah thank you :biggrin:
Reply 3
No problem ☺️
Reply 4
Pretty logical. Adding a new resistor will increase the resistance of the circuit. We know that I=V/R, so when R increase, I (current) decrease. Then we go to charge, which is Q=I*t. If I (current) decrease, Q (charge) will also decrease.

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