Electrons are accelerated in the picture tube through a potential difference of 8000 V. What is the change in the potential energy of each electron traveling in this tube?
charge of -e is 1.6E-19 C and its mass is 9E-31 kg.
Energy= qV, where q is the charge on each electron.
To calculate the change in potential energy of each electron, we need to use the formula for potential energy:
Potential Energy (PE) = charge (q) * potential difference (V)
Given:
Charge of an electron, q = -e = -1.6E-19 C
Potential difference, V = 8000 V
Now, we can substitute these values into the formula to find the potential energy:
PE = (-1.6E-19 C) * (8000 V)
PE = -1.28E-15 J
Therefore, the change in potential energy of each electron traveling in this tube is -1.28E-15 J.
Note: The negative sign indicates that the potential energy decreases as the electron moves through the electric field.