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- Apply the quantum nature of EM energy and the Bohr model of the atom to explain photon absorption and emission by an atom
- Explain how EM is transmitted through matter
- Explain why the speed of an EM wave changes as it passes through matter
- Relate the concept of resonance to the absorption of EM energy by matter
For each form of EM energy on the electromagnetic spectrum, briefly outline how its produced and what interaction and effect it has on the matter in its path.
For the system of capacitors shown in Figure, find :
a. The equivalent capacitance of the system
b. The potential across each capacitor
c. The charge on each capacitor
d. The total energy stored by the group
picrure reference : https://ibb.co/Sn6fwRv
A solid conducting sphere of radius a carries a net positive
charge +2Q. A conducting spherical shell of inner radius b and
outer radius c is concentric with the solid sphere and carries a
net charge -Q. Using Gauss's law, find the electric field in the
regions labeled 1, 2, 3, and 4 in Figure and the charge
distribution on the shell when the entire system is in
electrostatic equilibrium
picture : https://ibb.co/m6h9Wpj
Calculate the electric field at a point P and electrostatic force if in P Q=+10-7C.
figure. Suppose a particle of charge q is moving with velocity v, where v << c, in the
xz−plane at a constant distance z0 from xy−plane (Assume the particle is moving
in the positive x−direction). Suppose the particle crosses the z−axis at t=0. Give
the induced emf in the loop as a function of time.
For discharging process
R=10KiloOHM,V=470microF, E=12V.
A)What value will be the voltage across the capacitor 2 time constant
B)what value will be the voltage across after 6 seconds.
C)when the capacitor will be fully charged
D)when will the current through the circuit be reduced by 25%
Explain why the path has this general shape and why it is repetitive.
A parallel-plate capacitor of a plate area A and plate separation d. The left half
of the gap is filled with a material with dielectric constant κ1; the top of the right half is filled with
material of dielectric constant κ2; the bottom of the right half is filled material of dielectric constant
κ3. What is the capacitance C?
A parallel plate capacitor has the space between the plates filled with two slabs of dielectric, one with constant κ1 and one with constant κ2. Each slab has thickness d/2, where d is the plate separation. Show that the capacitance is C = 2ε0A /d (κ1κ2/κ1 + κ2)
#339914 on Dec 2023