True or false on the following: Two unequal charges q1 and q2 are held in place

Question

True or false on the following:

Two unequal charges q1 and q2 are held in place seperated from each other. A point charge Q is placed somewhere between them at a point where it remains stationary when released. From this observation, we can conclude that q1 and q2 must be both positive or both be negative.

Two nuclei each contain two protons and exert a force $ N on eachother. If we transfer a proton from one of these nuclei to the other, the force on each nucleus is now reduced to 3 N.

Three point charges are at the vertices of an equilateral triangle. If the electric field at the midpoint of any side of this triangle points perpendicular to that side away from the inside of the triangle, you can conclude that these three charges have the same amount of charge and are all negative.

It is impossible for any onject to have a charge of 7.5e

If one bag contains a charge 8Q and another one contains charge Q, the 8Q bag exerts 8 times as much force on the Q bas as the Q bag exerts on the 8Q bag

Two infinite parallel plastic sheets contain equal negative charge densitties uniformly spread over their surfaces. The electric field is zero everywehre between these sheets, not just midway between them

A dipole is place near to a point charge Q. The net force on this dipole is zer because the dipole is neutral.

A pair of equal but opposite charges is glued to opposite ends of a plastic rod and placed in a uniform electric ffield in such a way that the rod makes a 45 degree angle with the field. The net force and torque on this combination of charges due to the field is zero because the charges balance out.

Explanation / Answer

true we can predict that the two charges having the same sign of charge True the force acting on the two nuclie if F1 = k.4e^2/d^2 = 4N      (e is charge of proton) the force acting on the two nuclie if F2 = k.3e^2/d^2 = 3N False As the electric field pointing away from the centre of the equilateral triangle, the charges on the vertices must be positive True Any object will have only integralmultiples of the charge of electron (e) False The force on Q bag due to 8Q bag will be the same that of on 8Q due to Q False The electric filed is zero only midway between the sheets False There shoud be force exerted on Q due to the field generated by the dipole False If all the forces (net forces and torque) are zero, then the rod should be parellel to the field

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.