A large positive charge pulls on a distant electron. How does the net force on the electron change if a slab of glass is inserted between the large positive charge and the electron? Does the net force...

A large positive charge pulls on a distant electron. How does the net force on the electron change if a slab of glass is

inserted between the large positive charge and the electron? Does the net force get bigger, smaller, or stay the same?

Explain, using only labeled diagrams.

(Be sure to show all the forces on the electron before determining the net force on the electron, not just the force exerted by

the large positive charge. Remember that the part of the net force on the electron contributed by the large positive charge

does not change when the glass is inserted: the electric interaction extends through matter.)