Draw a diagram of a
MEMS capacitive sensor for pressure and explain how it works.
Answer following questions:
1. How does the
capacitance of a parallel-plate capacitor depend on area and
separation?
2. How does the
sensitivity of a capacitive sensor depend on its dimensions and
temperature?
3. A MEMS
parallel-plate capacitor has a capacitance of 1 pF. If the
separation between the plates decreases by 10% what will be its
capacitance?
How does the construction of the Van de Graaf demonstrate these
two scenarios?
1. The electric field strength near a charged conductor is
greatest in the vicinity of the most sharply curved surface
therefore air is likely to ionize and initiate a spark near sharp
points.
2. it can be shown that if coulomb's law is correct all the
static electrical charge on a conductor must reside on its outer
surface
Explain how the G1 Checkpoint in response to DNA damage
works. Draw a diagram that indicates the proteins involved in this
checkpoint and explain their roles in this process. Be sure to
include all steps from the DNA damage to the arrest of the cell
cycle.
how does van de waals forces, electrostatic covalent bonding, or
a combination of these factors bind humic material to hemoglobin?
And which specific forces,trasnfers/exchanges, or covalent bonding
or a combination of all, is taking place?
find the charge on the other metal ball when it is connected
with the Van de Graaff generator. the generator initially has a
charge of +3.5 μC on its surface. It has a radius of 15 cm. It is
connected by a long, thin, conducting wire to a neutral metal ball
with a radius of 1.0 cm which is a long way away from the Van de
Graaff generator.
(a) Find the charge on the small metal ball after this...