# Physics equations/18-Electric charge and field

### WikiquizzesEdit

**Q:findE**Charges are placed on the x-y plane and students are asked to calculate the electric field at the origin.**Q:lineChargesCALCULUS**Positions a line charge along a segment on either the x or y axis and challenges the student to know details regarding the integral required to calculate the electric field.

### ReadingsEdit

**FHSST Physics**Good resource for the trig-based course.*Electric fields*(wikibook)**Coulomb's Law**will help with the CALCULUS based wikiquz.**lab is essential and belongs on commons if we an put it there. It's a wiki!!!!**- See also http://www.physics.udel.edu/~watson/phys208/exercises/kevan/efield1.html

## OtherEdit

**A:ElectricFieldGravityCompare**Asks the student to compare the influence of gravity and electrostatic force on a hydrogen atom near Earth's surface.