def electric_field_test_4():
env = [
Physics.Particle([0, 0], float("-3.65E-7"), 0),
Physics.Particle([0.218, 0], float("3.65E-7"), 0),
]
assert str(Physics.Point(
[0.109, 0]).find_electric_field(env)) == "[-552983.7555761299, 0.0]"
def electric_field_test_1():
env = [
Physics.Particle([3, 0], float("3.20E-19"), 0),
Physics.Particle([-3, 0], float("-3.20E-19"), 0)
]
assert list(Physics.Point([0, 3]).find_electric_field(env).vector) == [
-2.2627416997969528e-10, 0.0
]
def electric_field_test_2():
env = [
Physics.Particle([0, 0.045], float("7.3E-9"), 0),
Physics.Particle([0.045, 0.045], float("-17.5E-9"), 0),
Physics.Particle([0.045, 0], float("17.5E-9"), 0),
Physics.Particle([0, 0], float("-7.3E-9"), 0),
]
assert np.linalg.norm(
Physics.Point(
[0.0225,
0.0225]).find_electric_field(env).vector) == 128222.02965516063
def electric_field_test_3():
pos = [[-1, 0], [1, 0], [0, 1], [0, 2]]
charge_e = [4, 4, 2, -8]
charge = [e * float("1.6E-19") for e in charge_e]
env = [
Physics.Particle([p[0] * float("4.56E-6"), p[1] * float("4.56E-6")], q,
0) for p, q in zip(pos, charge)
]
assert np.linalg.norm(
Physics.Point([0, 0]).find_electric_field(env).vector) == 0