Physics 122 Final Exam Questions
with Correct Solutions||Updated
2025/2026 Syllabus||100%
Guaranteed Pass||<<Recent
Version>>
Maxwell Ampere law - ANSWER ✓ I_int is the current intercepted by a surface
spanning an amperian path
Maxwells equations - ANSWER ✓ provide a complete mathematical description
of electric and magnetic phenomena and the relationship between the two
electromagnetic wave - ANSWER ✓ a propagating disturbance in a combined
electric and magnetic field, the electric and magnetic waves are perpendicular to
each other and the direction is E x B
planar electromagnetic wave - ANSWER ✓ one in which the wavefronts are
planes perpendicular to the direction of propagation
polarization of an electromagnetic wave - ANSWER ✓ the orientation of the
electric field as seen by an observer looking in the direction of propagation
Poynting vector S - ANSWER ✓ gives the energy transported by an
electromagnetic wave per unit time across a unit area perpendicular to the direction
of propagation of the wave
electric circuit - ANSWER ✓ an interconnection of electrical components
load - ANSWER ✓ all the circuit elements connected ot the power source
steady state - ANSWER ✓ when the current has a constant value at all points in
the circuit
, resistance - ANSWER ✓ a measure of the potential difference across that element
for a given current. 1 ohm = 1 V/A
drift velocity - ANSWER ✓ of the change carriers in a metal in which a current is
present is the average velocity with which the carriers are moving
current density J - ANSWER ✓ a vector whose direction is the same as the drift
velocity direction when the charge carriers are positive and opposite the drift
velocity direction when the charge carriers are negative
resistance of a conductor - ANSWER ✓ R=l/A*(conductivity constant)
resistors in series - ANSWER ✓ R= R1 + R2 + R3
resistors in parallel - ANSWER ✓ 1/R= 1/R1 + 1/R2 + 1/R3
alternating current - ANSWER ✓ current that changes direction
reactance - ANSWER ✓ the proportionality constant between the potential-
difference amplitude and the current amplitude
phase constant (phi) - ANSWER ✓ the phase difference between the source emf
and the current is negative when the current leads the source emf and positive
when the current lags the source emf
instantaneous emf supplied by AC - ANSWER ✓ E = Emax(sin(omega)t))
instantaneous current in AC - ANSWER ✓
capacitive reactance - ANSWER ✓ X_c=1/omega*C
amplitude of the potential difference across the capacitor - ANSWER ✓
V_c=IX_c
impedance (Z) for RC - ANSWER ✓ the impedance of a load connected to an AC
source is a proportionality constant between the amplitudes of the potential
differences and the current through the load
, resonant angular frequency - ANSWER ✓ where the current in a series RLC
circuit is maximum
power factor - ANSWER ✓ a measure of the efficiency with which the source in
an AC circuit delivers energy to the load
semiconductor - ANSWER ✓ limited number of charge carriers that can move
freely
intrinsic semiconductor - ANSWER ✓ made of one element
extrinsic - ANSWER ✓ contains other elements
hole - ANSWER ✓ an incomplete bond in a semiconductor that behaves as a
freely moving positive charge carrier
diode - ANSWER ✓ made of p-type and n-type, behaves as a one way valve for
current
depletion zone - ANSWER ✓ a thin insulating region at the junction between p
and n type where they recombine
Pressure Difference = - ANSWER ✓ Height x Density x Gravity
Moment = - ANSWER ✓ Force x Perpendicular Distance from Pivot
Pressure = - ANSWER ✓ Force / Area
Wave Speed = - ANSWER ✓ Frequency x Wavelength
Refractive Index = - ANSWER ✓ Sin (I) / Sin (R)
Sin (Critical angle) = - ANSWER ✓ 1 / Refractive Index
Energy Transfer = - ANSWER ✓ Work Done
Work Done = - ANSWER ✓ Force x Distance Moved
with Correct Solutions||Updated
2025/2026 Syllabus||100%
Guaranteed Pass||<<Recent
Version>>
Maxwell Ampere law - ANSWER ✓ I_int is the current intercepted by a surface
spanning an amperian path
Maxwells equations - ANSWER ✓ provide a complete mathematical description
of electric and magnetic phenomena and the relationship between the two
electromagnetic wave - ANSWER ✓ a propagating disturbance in a combined
electric and magnetic field, the electric and magnetic waves are perpendicular to
each other and the direction is E x B
planar electromagnetic wave - ANSWER ✓ one in which the wavefronts are
planes perpendicular to the direction of propagation
polarization of an electromagnetic wave - ANSWER ✓ the orientation of the
electric field as seen by an observer looking in the direction of propagation
Poynting vector S - ANSWER ✓ gives the energy transported by an
electromagnetic wave per unit time across a unit area perpendicular to the direction
of propagation of the wave
electric circuit - ANSWER ✓ an interconnection of electrical components
load - ANSWER ✓ all the circuit elements connected ot the power source
steady state - ANSWER ✓ when the current has a constant value at all points in
the circuit
, resistance - ANSWER ✓ a measure of the potential difference across that element
for a given current. 1 ohm = 1 V/A
drift velocity - ANSWER ✓ of the change carriers in a metal in which a current is
present is the average velocity with which the carriers are moving
current density J - ANSWER ✓ a vector whose direction is the same as the drift
velocity direction when the charge carriers are positive and opposite the drift
velocity direction when the charge carriers are negative
resistance of a conductor - ANSWER ✓ R=l/A*(conductivity constant)
resistors in series - ANSWER ✓ R= R1 + R2 + R3
resistors in parallel - ANSWER ✓ 1/R= 1/R1 + 1/R2 + 1/R3
alternating current - ANSWER ✓ current that changes direction
reactance - ANSWER ✓ the proportionality constant between the potential-
difference amplitude and the current amplitude
phase constant (phi) - ANSWER ✓ the phase difference between the source emf
and the current is negative when the current leads the source emf and positive
when the current lags the source emf
instantaneous emf supplied by AC - ANSWER ✓ E = Emax(sin(omega)t))
instantaneous current in AC - ANSWER ✓
capacitive reactance - ANSWER ✓ X_c=1/omega*C
amplitude of the potential difference across the capacitor - ANSWER ✓
V_c=IX_c
impedance (Z) for RC - ANSWER ✓ the impedance of a load connected to an AC
source is a proportionality constant between the amplitudes of the potential
differences and the current through the load
, resonant angular frequency - ANSWER ✓ where the current in a series RLC
circuit is maximum
power factor - ANSWER ✓ a measure of the efficiency with which the source in
an AC circuit delivers energy to the load
semiconductor - ANSWER ✓ limited number of charge carriers that can move
freely
intrinsic semiconductor - ANSWER ✓ made of one element
extrinsic - ANSWER ✓ contains other elements
hole - ANSWER ✓ an incomplete bond in a semiconductor that behaves as a
freely moving positive charge carrier
diode - ANSWER ✓ made of p-type and n-type, behaves as a one way valve for
current
depletion zone - ANSWER ✓ a thin insulating region at the junction between p
and n type where they recombine
Pressure Difference = - ANSWER ✓ Height x Density x Gravity
Moment = - ANSWER ✓ Force x Perpendicular Distance from Pivot
Pressure = - ANSWER ✓ Force / Area
Wave Speed = - ANSWER ✓ Frequency x Wavelength
Refractive Index = - ANSWER ✓ Sin (I) / Sin (R)
Sin (Critical angle) = - ANSWER ✓ 1 / Refractive Index
Energy Transfer = - ANSWER ✓ Work Done
Work Done = - ANSWER ✓ Force x Distance Moved
