24. A car is travelling along an expressway at 90 km/h. The driver spots a stalled car and some traffic congestion on the road a
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The energy of the incident electron in keV is 5.51× 10—²² keV.
Capacity or ability to do work is termed energy. Energy exists in various forms. It can be in the form of mechanical, potential, thermal, kinetic, and many other forms. Joules is the SI of the energy. The potential energy of a system is defined as the energy stored due to its position. While kinetic energy is defined as the energy
stored due to its position.
Radius1 of the trajectory = 1.00 cm
Radius2 of the trajectory = 2.4 0 cm
The magnitude of the uniform magnetic field = 0.0440 T
A Uniform magnetic field is perpendicular to the trajectories.
The velocity of the incident electron is,
The energy of the incident electron is,
The energy in keV is,
1-kilo electron volt = 1000 electron volts
1 keV = 1000 eV
Therefore, the energy of the incident electron in keV is 5.51× 10—²² keV.
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