Aconstant voltage is applied across a circuit element. if the resistance of the element is doubled, what is the effect on the power dissipated by this element? the power dissipated is reduced by a factor of 2. the power dissipated remains constant. the power dissipated is doubled. the power dissipated is quadrupled. the power dissipated is reduced by a factor of 4.

The power dissipated is reduced by a factor of 2

Explanation:

The power dissipated by a resistor is given by:

where

I is the current

R is the resistance

by using Ohm's law, , we can rewrite the previous equation in terms of the voltage applied across the resistor (V):

In this problem, the resistance of the element is doubled, while the voltage is kept constant. So we have while V remains the same; substituting into the formula, we have:

so, the power dissipated is reduced by a factor 2.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

force tends to be low and long diustance masses are high