The flashcards below were created by user
keesukim
on FreezingBlue Flashcards.
-
Define capacitance of a capacitor
Charge on either plate/pd between plates
-
What is the magnetic field strength?
Vector quantity. Direction in which the north pole of a freely pivoted magnet points.
-
What is magneti flux?
AB cos(x) where A is the area the single coil encloses
-
State faraday's law
When the flux linking an electrical circuit is changing, an ef is induced in the circuit of magnitude equal to the rate of change of flux linkage.
-
State Lenz's law
The induced emf tends to oppose the change that causes it.
-
What is root-mean-square value?
-
What is the half - life of a nuclide?
The time taken for the number of radioactive nuclei N to reduce to one half of the initial value. (Unit s)
-
What is activity?
The rate of decay of a sample of radioactive nuclei (unit Bq)
-
Define the decay constant?
ln(2)/T(1/2). Determines the rate of decay
|
|