If electrons are caused to fall through a potential difference of 10000V determine final speed if they were initially at rest
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Answered by
80
V = 10, 000 Volts
u = 0. initial KE = 0
the electric electrostatic fields are conservative in terms of energy.
the energy lost by the electron = V e = 10, 000 * 1.602 * 10⁻¹⁹ Joules
= 1.602 * 10⁻¹⁵ J
mass of electron = m = 9.11 * 10⁻³¹ kg
Kinetic energy gained is = P E lost = 1/2 m v² = 1.602 * 10⁻¹⁵ J
=> v =5.93 * 10⁷ m/sec
u = 0. initial KE = 0
the electric electrostatic fields are conservative in terms of energy.
the energy lost by the electron = V e = 10, 000 * 1.602 * 10⁻¹⁹ Joules
= 1.602 * 10⁻¹⁵ J
mass of electron = m = 9.11 * 10⁻³¹ kg
Kinetic energy gained is = P E lost = 1/2 m v² = 1.602 * 10⁻¹⁵ J
=> v =5.93 * 10⁷ m/sec
kvnmurty:
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Answered by
5
answer is 2.3 * 1000000000
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