- #1

hotstuff

- 10

- 0

(a) Find the speed of the electrons when they reach the screen. Ignore any relativistic effects.

how to do this i have no idea what formula to use

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- Thread starter hotstuff
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- #1

hotstuff

- 10

- 0

(a) Find the speed of the electrons when they reach the screen. Ignore any relativistic effects.

how to do this i have no idea what formula to use

- #2

OlderDan

Science Advisor

Homework Helper

- 3,021

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What is the definition of electric potential? The problem tells you how much the electron's electric potential will change. How much will its potential energy change? How much will its kinetic energy change? Assume the electron starts at test. How much velocity does it acquire?hotstuff said:

(a) Find the speed of the electrons when they reach the screen. Ignore any relativistic effects.

how to do this i have no idea what formula to use

- #3

geosonel

- 88

- 0

check here:hotstuff said:

(a) Find the speed of the electrons when they reach the screen. Ignore any relativistic effects.

how to do this i have no idea what formula to use

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/ev.html#c2

see above URL page to find (for charge initially at rest):

(work done on charge q by potential difference ΔV) = (1/2)mv

other concepts you may need later:

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elewor.html#c1

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