Question

What is the dielectric constant of the ideal (no resistance) metal and what is the physical meaning of it?

Answer #1

Consider a dielectric with a dielectric constant K = 2.6 and a
dielectric strength of 2.0×107 Vm^(−1) . A piece of this dielectric
is placed between the plates of a parallel plate capacitor,
completely filling the volume between the plates.
a. What is the energy density inside the capacitor when the
electric field between the plates is 80% of the dielectric
strength.
b. When the capacitor is connected to a battery with a 500.0 V
voltage, the electric field is...

A cell membrane has a resistance and a capacitance and thus a
characteristic time constant. What is the time constant of a 8.9 nm
-thick membrane surrounding a 5.0×10−2 mm -diameter spherical cell?
Assume the resistivity of the cell membrane as 3.6×106 Ω⋅m and the
dielectric constant is approximately 9.0.

1-how each dielectric material has its own unique specific
dielectric constant. The textbook and other resources refer to the
constant as "k" but wouldn't each material having its own constant
ruin the purpose of a "constant" being the same value for every
dielectric material?
2-What the dielectric does exactly?
3-why we only consider one of two similar junctions in a
circuit. Why do we not consider the other junction if they are
equivalent equations?

Explain the physical meaning of the spring constant in terms of
"stiffness" or "softness" of a spring

1) An ideal ammeter would have zero
resistance while an ideal voltmeter would have infinite resistance,
why?
2) Is the true resistance greater or
smaller than the measured resistance?
3) What is sweep time of a scan with a
sweep rate of 60 Hz?
4) Is the time base affected by
changing the horizontal and vertical gains?
5) What is an ohm, what combination of
fundamental SI units does it represent?
6) The common 9 Volt battery imparts
how much...

A certain substance has a dielectric constant of 2.8 and a
dielectric strength of 18 MV/m. It is to be used in a parallel
plate capacitor that has a capacitance of 7.0 10-2
microF and that can withstand a potential difference of 4.0 kV.
What minimum dimensions (d & A) must the capacitor have?

Given a spherical dielectric shell (inner radius a, outer radius
b, dielectric constant k) and a point charge q, infinitely
separated. Now let the point charge be placed at the center of the
dielectric shell. Determine the change in energy of the system?

Polystyrene has dielectric constant 2.6 and dielectric strength
2.0 ×× 1077 V/mV/m. A piece of polystyrene is used as a dielectric
in a parallel-plate capacitor, filling the volume between the
plates.
A) When the electric field between the plates is 79 %% of the
dielectric strength, what is the energy density of the stored
energy?
B) When the capacitor is connected to a battery with voltage
500.0 VV, the electric field between the plates is 79 %% of the
dielectric...

1.What effect will THE use of a solvent with a higher dielectric
constant have on the rate of propagation of chain polymerization?
2.Why is methoxymethylated nylon is more flexible than
nylon?

Polystyrene has dielectric constant 2.6 and dielectric strength
2.0 × 107 V/m. A piece of polystyrene is used as a dielectric in a
parallel-plate capacitor, filling the volume between the plates.
Part A When the electric field between the plates is 76 % of the
dielectric strength, what is the energy density of the stored
energy? Express your answer with the appropriate units. u =
nothingnothing SubmitRequest Answer Part B When the capacitor is
connected to a battery with voltage...

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