Therefore, when a negative charge is given to the soap bubble, then its radius will increase . So, the correct answer is “Option A”.
When a soap bubble is charged then?
When the charge is placed on the soap bubble, every part of the surface of the soap bubble has the same charge. So every part of the surface of the soap bubble will repel every other part of the surface which will increase the size (and hence radii) of the soap bubble.
When a soap bubble is given a positive charge then its radius?
This can occur in both positive and negatively charged bubbles due to their ionic similarity. Therefore we can conclude that when the soap bubble is given a positive charge or negative charge, then the radius of the soap bubble will increase . Hence the correct answer is option B.
How a body can be charged negatively?
The body which gains electrons is negatively charged and the other which loses electrons is positively charged. ... An object is negatively charged if it gains excess electrons or gives excess electrons to it and otherwise positively charged if it loses excess electrons or is uncharged.
What happens to the size of soap bubble if it is positively charged?
if a soap bubble is given some positive charge then its radius increases . The bubble will expand because the charged particles uniformly distributed on it cause them to repel each other due to the electrostatic force.
Is a unit positive charge is taken from one point to another over an equipotential surface then?
Since the potential at each point of an equipotential surface is the same, the potential does not change while we move a unit positive charge from one point to another. Therefore work done in the process is zero .
When a body become negatively charged its mass?
The mass of electron is 9.1×10-31 kg . When body gets charged negatively it gains electrons .
What is the name of this device that is used to detect charges?
Electroscope, instrument for detecting the presence of an electric charge or of ionizing radiation, usually consisting of a pair of thin gold leaves suspended from an electrical conductor that leads to the outside of an insulating container.
What is the minimum charge on an object?
The fundamental quantity of charge that gets transferred is the amount of charge that an electron possesses. Therefore the amount of charge that an electron possesses is $1.6 times 10 ^{-19}$ C. Therefore the minimum amount of charge that any object can possess is this. Therefore the correct option is (C).
What is a negatively charged body?
Electrons are negatively charged, and protons are positively charged and magnitude of charge is same that is e. A body is naturally neutral by itself. If a body has overall negative charge means number of negatively charged particles is more, that is it has excess of electrons.
What is it called when a body is positively and negatively charged?
Complete step-by-step answer:
These atoms are further subdivided into electrons, protons and neutrons. A body is often said to be charged due to the presence of charges in them. A positively charged body is said to contain positive charges while a negatively charged body is said to possess negative charges.
How does a body gets positively charged?
Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object , it becomes positively charged.
What does the existence of a negative charge on a body implies?
It is known that negative charge acquired on a body implies that it has a greater number of electrons than the number of protons . Hence a body is negatively charged by acquiring some electrons from outside.
When the body is positively charged by friction it has?
When a solid body is negatively charged by friction, it means that the body has acquired excess of electrons. If the body loses electrons it becomes positively charged and if the body gains electrons it becomes negatively charged .
What is work done to move a charge from one point to another point on a line of equipotential?
An equipotential surface is everywhere perpendicular to the electric field that it characterizes. The work done by the electric field on a particle when it is moved from one point on an equipotential surface to another point on the same equipotential surface is always zero .
What is unit positive charge?
A unit positive charge is where you will have a H+ ion . Hydrogen atom (H) has 1 proton and 1 electron. but it gives up its single electron to become H+ ion which now only has 1 positively charged proton.
