MECHATRONICS PRACTICE QUESTIONS WITH
ANSWERS GUARANTEED SUCCESS
Conductivity (Resistivity^-1)
ability of material to conduct charge
Permittivity
ability of material to conduct electric field
Permeability
ability of material to conduct magnetic field
Resistance
proportionality constant relating the potential difference across a material to the flow
through it
current flows
from '+' to '-' although in fact the charge
carriers are electrons flowing in the opposite direction
,Kirchhoff's Second Rule (voltage rule)
voltage sums to zero around any closed loop
P Vi=i^2 R
Kirchhoff's First Rule (current rule)
sum of current at a junction is zero
Total Resistance in parallel
1/(R total) =(1/R1)+(1/R2)+...+(1/Rn)
Total Inductance in parallel
1/(L total)=(1/L1)+(1/L2)+...+(1/Ln)
Total Resistance in series
R total = R1+R2+...+Rn
Total Inductance in series
L total = L1+L2+...+Ln
, Total Capacitance in parallel
C total = C1+C2+...+Cn
Total Capacitance in series
1/(C total) = (1/C1) +(1/C2)+...+(1/Cn)
Capacitance
is the scale factor relating the charge and the potential difference
Q = CV
Capacity
current X time
i(t)
= dQ/dt = -Q/(RC)
Energy stored in capacitor
E=0.5CV^2
ANSWERS GUARANTEED SUCCESS
Conductivity (Resistivity^-1)
ability of material to conduct charge
Permittivity
ability of material to conduct electric field
Permeability
ability of material to conduct magnetic field
Resistance
proportionality constant relating the potential difference across a material to the flow
through it
current flows
from '+' to '-' although in fact the charge
carriers are electrons flowing in the opposite direction
,Kirchhoff's Second Rule (voltage rule)
voltage sums to zero around any closed loop
P Vi=i^2 R
Kirchhoff's First Rule (current rule)
sum of current at a junction is zero
Total Resistance in parallel
1/(R total) =(1/R1)+(1/R2)+...+(1/Rn)
Total Inductance in parallel
1/(L total)=(1/L1)+(1/L2)+...+(1/Ln)
Total Resistance in series
R total = R1+R2+...+Rn
Total Inductance in series
L total = L1+L2+...+Ln
, Total Capacitance in parallel
C total = C1+C2+...+Cn
Total Capacitance in series
1/(C total) = (1/C1) +(1/C2)+...+(1/Cn)
Capacitance
is the scale factor relating the charge and the potential difference
Q = CV
Capacity
current X time
i(t)
= dQ/dt = -Q/(RC)
Energy stored in capacitor
E=0.5CV^2
