Physics Circuits Flashcards
Charge q on a capacitor formula
Q = CV
Capacitance formula
C = A/ Distance
Intensity formula
I = P / A = (Energy * time) / Area
More gamma rays -> more intensity
Greater dose increases gamma ray intensity
Electromagnetic radiation
Current formula with charge
I = Q / time
Q = I * time
Voltage formula
V = IR
What is electrical conductivity?
How easily a current can move through a material and it is inversely proportional to electrical resistance
W apparent formula
W apparent = W air - Fb
Formula for specific gravity
p substance / p water
when submerged in water specific gravity = Weight / Fb
When force is applied to an object in water, velocity ..
Increased but when the force is removed, velocity is constant
Capacitance it dielectric materials formula
In series circuit voltage … while current …
Different
Current is the same
In parallel circuit voltage is … while current is ..
Voltage is the same
Current is different
Ohms law
Resistance formula
R eq and Ceq in series
Req = R 1 + R2 + R 3
1/C eq = 1/C1 + 1/C2 +
Req and Ceq in parallel
C eq = C1 + C 2 + C 3
1/Req = 1/R1 + 1/ R2
Conductivity characteristics
Describes how east charges flow through the molecular structure of the given material.
Directly proportional to electric conductor
But inversely proportional to resistivity
Most metals are highly conductive while no metals are nonconductive.
Salt solution are high conductivity while weak acid solution is low and simple alcohol no conductivity at all.
When conductivity high, current also high and vice versa
Energy in a capacitor formula
U = 1/2 CV^2 = 1/2 QV = 1/2 Q^2/ C
SI units
Electric power formula
Electric charges can be
Positive and negative
Current formula with time
I = Q/ t
Q - charge in C
What is confounding variable?
Uncontrolled variable than affect the DV
