20 points calculation using ohm's law: if a circuit has a voltage of 500 v and a resistance of 250 ohms, what is the current? 2 amps 0.5 amps 125,000 amps ty last question for now

Acharged particle moves in a circular path in a uniform magnetic field. which of the following would increase the period of the particle's motion? check all that apply. increasing its chargeincreasing its massincreasing the field strengthincreasing its speed