GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two neutrally charged balloons are touching. What will happen if a negatively charged rod is brought near one of the balloons without touching it?
A
the balloons will move toward each other
B
the balloons will move away from each other
C
electrons on the balloons will move toward the rod
D
electrons on the balloons will move away from the rod
Explanation: 

Detailed explanation-1: -The balloons will pop. Q. Q. The difference between attraction and repulsion is that to attract is to pull something closer and repel is to push something away.

Detailed explanation-2: -When the balloon is brought near the can, something interesting happens – the electrons move to the side of the can to get as far away from the negatively charged balloon as possible. This leaves the side of the can nearest the balloon positively charged.

Detailed explanation-3: -The presence of the negative charge will induce electron movement in the sphere. Since like charges repel, negative electrons within the metal sphere will be repelled by the negatively charged balloon.

Detailed explanation-4: -During charging by conduction, both objects acquire the same type of charge. If a negative object is used to charge a neutral object, then both objects become charged negatively. In order for the neutral sphere to become negative, it must gain electrons from the negatively charged rod.

Detailed explanation-5: -When a negatively charged object is brought near the knob of a neutral electroscope, the negative charge repels the electrons in the knob, and those electrons move down the stem into the leaves. Excess electrons flow from the rod into the ball, and then downwards making both leaves negatively charged.

There is 1 question to complete.