Please help me for these multiple questions, I have an final tomorrow,thank you?

1. According to Gauss’ Law


a)electric flux depends on the shape of the surface enclosing the electric charge.


b)electric flux through any closed surface is proportional to the charge enclosed.


c)electric flux depends on the magnetic field.


d)there are magnetic monopoles.








3. Which one of the following is true for a plane electromagnetic wave traveling along the z direction?


a)E, B, z form a right handed system of vectors.


b)E, B, z form a left handed system of vectors.


c)E and B are parallel.


d)B and z are parallel.





4. A covalent bond like the bonds between C atoms in diamond is formed by


a)the Coulomb attraction between a positive and a negative ion.


b)the dipole-dipole interaction between neutral atoms.


c)attraction between exposed protons in hydrogen atoms.


d)a pair of electrons shared between two atoms.

Please help me for these multiple questions, I have an final tomorrow,thank you?
1) a Gauss' Law intergal [ E dot dA ] = 4*pi * q(enc) B is also correct but a is "more" correct.


3) a dell cross E = B so E and B will be perpendicular and obey the right hand rule. c is wrong because E and B are never parallel d is wrong becuase that is the direction of the wave ( or k vector )and the electric and magnetic field are perpendicular to that (k vector)


4) I am unsure but I would guess a

quince