In vacuum, there are two point charges which are 0.3m apart and have the same charge quantity. The electrostatic quantity between them is 1 × 10 to the negative third power In vacuum, there are two point charges which are 0.3m apart and have the same charge quantity. The electrostatic quantity between them is 1 × 10 to the negative third power. How many element charges does each point charge carry?
F=kqq/r^2
Q = R * radical (F / k) = 0.3 * radical [(10 ^ - 3) / (9 * 10 ^ 9)] = 9.99 * 10 ^ - 8 c
The charge quantity of each point charge is a multiple of the elementary charge
n=(9.99*10^-8)/(1.6*10^-19)=6.24*10^11
Equivalent to 6.24 * 10 ^ 11 elementary charges?
There are two fixed point charges in vacuum, Q1 = + 4.0 * 10 to the negative 8th power and Q2 = + 8.0 * 10 to the negative 8th power
There are two fixed point charges in vacuum, Q1 = + 4.0 * 10 to the negative 8th power and Q2 = + 8.0 * 10 to the negative 8th power. Find out the size and direction of the electric field strength of the point on their line!
Because it is a fixed charge, the electric field of the two points is stable, then the electric field of Q1 is - 4.0 × 10 negative octave
The electric field of Q2 is - 8.0 × 10 - 8 power, then we can get that the direction of electric field intensity on the two-point line is from Q1 to Q2, and the change rule is more and more big
There are two fixed point charges in vacuum, Q1 = + 2.0 * 10 (- 8th power) C, Q2 = + 8.0 * 10 (- 8th power) C. find the direction of P point field strength on the line (q1p = 0.1M, q2p = 0.5m)
E = (kq1 divided by the square of (q1p)) - (KQ2 divided by the square of (q2p))
The substitution result is positive, and the direction is along the q1p direction
There are two fixed point charges in vacuum, Q1 = + 4.0 * 10 to the negative 8th power and Q2 = + 8.0 * 10 to the negative 8th power, q1p = 20cm, q2p = 30cm
There are two fixed point charges in vacuum, Q1 = + 4.0 * 10 to the negative 8th power and Q2 = + 8.0 * 10 to the negative 8th power, q1p = 20cm, q2p = 30cm. Find out the size and direction of the electric field strength of the point on their line!
According to the field strength of the point charge, KQ / R2, Qi and Q2 are 9.0 * 10 and 8.0 * 10, respectively, which are subtracted to the third power of 1.0 * 10