Calculate the flux density at the centre, of a coil if there are 100 turns wound on a solenoid 25cm long and carrying a current 3amperes.

grav potential energy

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.