They compress or expand depending on amount of pressure or depending on the temperature
Answer:
Explanation:
Power Dissipated in a resistor is given by two methods i.e.
and

where 


both formula gives Power but Former is used when voltage is constant i.e. when resistors are in parallel and the later is used when the resistor are in series .
Though
can also be used in series but we have to calculate the Potential drop across each resistor then we can apply the formula.
Similar is with 
First we have to calculate current through each resistor then we can apply the Formula
Answer:
Explanation:
We can see from the question that

and 
% of 
=> 
from the question
% of 
Substituting this into the equation

=> 



From the equation above

