Electrostatics of Conductors

A solid conductor is placed in an uniform electric field as shown in figure. Which path will the lines of force follow?

A point charge $Q$ is placed at a distance $2R$ from centre of an uncharged metallic sphere of radius $R$, select the correct alternative

In the following a statement of Assertion is followed by a statement of Reason.

Assertion: Charged metallic surface in electrostatic condition is always an equipotential surface.

Reason: There is no component of electric field (in electrostatic condition) parallel to charged metallic surface.

Assertion: The whole charge of a conductor cannot be transferred to another isolated conductor.

Reason: The total transfer of charge from one to another is not possible.

Assertion: Electric field inside the metal is zero when it is placed in external electric field.

Reason: In metal, induced electric field is equal and opposite of applied field.

Assertion: Two spherical cavities are made inside a conductor having charge $\mathrm{Q}$. Two point charges $q_1$ and $q_2$ are kept at the centres of cavity and another charge $\mathrm{q}$ is kept outside the conductor. Electric field due to charge on outer surface of conductor is zero at a point inside the conductor.

Reason: In the above assertion electric potential is constant inside the conductor in static condition.

Assertion: A charged metal plate has the same potential at all points on its surface & different distribution of charge.

Reason: As conductors have uniform distribution of charge, so potential & charge distribution is same at every point.

Assertion: In any condition when a conducting sphere is charged then the charge on it must be distributed uniformly over it surface because it is a sphere

Reason: The surface of a conducting body is an equipotential surface.

Assertion: Across the surface of a charged conductor potential is discontinuous.

Reason: Electrostatic force is a conservative force.

Assertion: For practical purposes, the Earth is used as a reference at zero potential in electrical circuits.
Reason: The electrical potential of a sphere of radius $R$ with charge $Q$ uniformly distributed on the surface is given by $\frac{Q}{4\mathrm{\pi }{\mathrm{\epsilon }}_{0}R}$.

Which of the following diagram is correct? 

What is the ratio of the electrostatic potentials at one corner and in the centre point of a uniformly charged cube of the conductor? (The potential is considered $0$ at infinity)

Out of two copper spheres of the same size, $x$ is hollow while $y$ is solid. If they are charged at the same potential, what can be said about the charges on them?

An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The electric lines of force will look like

An astronaut is in an all-metal chamber outside the space station when a solar storm results in the deposit of a large positive charge on the station. Which statement is correct?