PLS QUICK Why is there repulsion between the north poles of these two magnets? A. A new and different magnetic field forms between the two north
poles.
B. The magnetic fields between the north poles repel each other.
C. North poles repel each other, and south poles attract each other.
D. The magnetic fields between the south poles repel each other.

Ibelieve the answer is b

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.