find strength of electrostatic field whose force on electron is equal to weight of electron.
Answers
Explanation:
The electric force on an electron F= qE where q is the electronic charge and E is the electric field strength. The gravitational force on an electron F = mg where m is the electron mass and g is the graviational field strength -probably you would use 9.81 ms^-2.
Answer:
Hence, strength of electrostatic field = 5.6 × 10^(-11) V/m
Explanation:
Force,F on electron with charge 'q' in electric field E is q × E
Weight of electron with mass m_E in gravity, g = m_E ×g
For electric force to be equal to its weight F=m_E × g
This implies, q×E = m_E×g
Hence, E= m_E×g/q
m_E = 9.1x10^(-31) Kg
g = 9.8 m/s^2
q = 1.6×10^(-19) C
Putting in the numbers we get
E = 5.6x10^(-11) V/m the required electric field.
Hence, strength of electrostatic field = 5.6 × 10^(-11) V/m
NOTE : THE EXPLANATION IS GIVEN IN THE ATTACHMENT BELOW. KINDLY REFER TO THAT.