An experiment is conducted on a long straight wire of diameter d. a constant current is sent through the wire and the magnetic field on the surface of the wire is measured to be b1. the experiment is then repeated with the same current but with a wire of diameter 2d. the magnetic field measured on the surface of this second wire will be which of the following? a. b1 b. b1 / 4 c. 4b1, d. b1 / 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

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

gravitational energy

electrical energy

kinetic energy

ligh energy