Physics20755 marksNumerical: electron velocity between chargesElectric and magnetic field and potential
An electron is placed midway between two fixed charges, q1 = 2.5 times 10-10 C and q2 = 5 times 10-10 C. If the charges are 1 m apart, what is the velocity of the electron when it reaches a point 10 cm from q2?
An electron is placed midway between two fixed charges, $q_1 = 2.5 \times 10^{-10}$ C and $q_2 = 5 \times 10^{-10}$ C. If the charges are 1 m apart, what is the velocity of the electron when it reaches a point 10 cm from $q_2$? [5]
- $q1 = 2.5 \times 10^{-10}$ C - $q2 = 5.0 \times 10^{-10}$ C - Separation $d = 1$ m - Initial position: midway, i.e. $0.5$ m from each charge - Final position: $10$ cm $= 0.1$ m from $q2$, hence $0.9$ m from $q1$ - Electron mass $me = 9.11 \times 10^{-31}$ kg - Electron charge magnitude