Anna:
77. Two electrons are 109 m apart when they are
released. What is their speed when they are
108 m apart?
78. How does doubling the accelerating voltage
of the electron gun in a cathode ray tube
affect the speed of the electrons that reach
the screen?
79. The electron gun of a TV picture tube has an
accelerating potential difference of 15 kV and
a power rating of 27 W.
a) How many electrons reach the
screen per second?
b) What speed does each electron have?
80. The electrod
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment