The formula of heat in physics,
①Q=cm△t
②Q=I^2Rt
Characteristics of series parallel circuit (the relationship between electric power, electric heating, etc.)
such as
In series, P = P1 + P2
In parallel, P = P1 + P2
The algorithm of power can be divided into three formulas, P = UI = I * I * r = u * U / R. for a series circuit composed of several resistors in series, the current through each resistor is equal, which is determined by I * I * r. therefore, compared with other resistors, the higher the power of resistance is, the same as for a parallel circuit, the voltage of several resistors is equal, which is determined by u * U / R
Work formula of electric field force
Is w = Qu
W = Qu or w = f electric D
What are the current work formulas
w=U I T ; W= U^2 * t/R = I^2 * r *t