Three generations of love in Lanxi Town

188 The Plan Has Changed
Blue static field mind map
Positive and negative charges: the broken glass rod of silk is positively charged, and the rubber of fur is negatively charged

Charge
Electric point charge: a charged particle

Field Source Electricity: A charge that generates an electric field

Induced charge: the charge induced by blue static electricity

Probe charge: A small charge used to deeply measure electric fields

Charged amount: how much is charged (unit library, ()

Elementary charge: with small charge value (e=1.6x10-19C)
Triboelectricity
Real goods: charge moves in the object

electrification method
Reason: Different objects have different attraction and ability to electricity

Electricity

After the same (surface area, material, etc.) small five balls connect the corners, the charges are divided equally

fixed; charge transfer between objects
Inductive remote
Law: near difference and far difference

physical goods; charge transfer between things
Formula: F
warehouse law
Conditions for use: point charges in a vacuum
r→∞, F→0(V)
Notes
When r>0, F(X)r>0, it cannot be used as a point charge
r=0，F=0(v)
Super F: F=G, G=66Tx101
Three points are in the same line, two are the same and different, and the two big stories are small in history and small in distance.
Definition formula: E[-] (cannot describe positive and negative ratio)
Vectoriality: positive charges are the same, negative charges are opposite

Determinant formula: E= (point electric field)

②E: expensive (uniform electric field)
Superposition: vector summation (square four, triangle)
Special substance: does not actually exist, artificially designed (the electric field is an invisible substance) Faracho proposed

wire
Note: ① The tangent direction of the electric field line indicates the direction of the field strength
non-closed (electrostatic field) disjoint

③The size of the density table; the density is large, and the density is small
　Today's school exam, from [-]:[-] am to [-]:[-] pm, I'm too tired to ask for a leave of absence, I won't change it today
　　It will definitely be updated tomorrow, and I won’t make it up tomorrow. I was hit by a car when I went out, choked to death when I drank water, choked to death when I ate, and died when I slept (~￣▽￣)→))*￣▽￣*)o
　　
　
(End of this chapter)