Which is true of magnetic field lines, but not electric field lines? A. They never cross.

B. They always form complete loops.

C. They are not affected by their own source.

D. They are stronger near the source, and get weaker farther away.

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

continuous conducting path for current, power supply

it would be c. predictability