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You have a negatively charged object. How can you use it to place a net negative charge on an insulated metal sphere? To place a net positive charge on the sphere?

Short Answer

Expert verified

Use touch to put a negative charge and induction to put a positive charge on an insulated metal sphere.

Step by step solution

01

Definition of Electric charge and its types

The physical characteristic of matter that allows it to feel a force when exposed to an electromagnetic field is called electric charge.

The electric charge is denoted by Q.It has two types: Positive charge and Negative Charge.

02

Put net negative charge on an insulated metal sphere:

To put a net negative charge on an insulated metal sphere from a negatively charged object, touch the sphere with negatively charged object. This will result in both objects being negatively charged.

Hence, the metal sphere gets a net negative charge.

03

Put net positive charge on an insulated metal sphere:

To put a net positive charge on an insulated metal sphere from a negatively charged object, use induction. Place the negatively charged object to the vicinity of one side of the sphere. This make charges on the sphere polarize, the electrons group on the other side. With a grounded wire, conduct the electrons away from the sphere. Then remove the wire.

Hence, the metal sphere gets a net positive charge.

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Most popular questions from this chapter

Question: A positive point charge is placed near a very large conducting plane. A professor of physics asserted that the field caused by this configuration is the same as would be obtained by removing the plane and placing a negative point charge of equal magnitude in the mirror image position behind the initial position of the plane. Is this correct? Why or why not?

Light Bulbs in Series and in Parallel. Two light bulbs have constant resistances of 400ฮฉand 800ฮฉ. If the two light bulbs are connected in series across a 120Vline, find (a) the current through each bulb; (b) the power dissipated in each bulb; (c) the total power dissipated in both bulbs. The two light bulbs are now connected in parallel across the120Vline. Find (d) the current through each bulb; (e) the power dissipated in each bulb; (f) the total power dissipated in both bulbs. (g) In each situation, which of the two bulbs glows the brightest? (h) In which situation is there a greater total light output from both bulbs combined?

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Two copper wires with different diameter are joined end to end. If a current flow in the wire combination, what happens to electrons when they move from the large diameter wire into the smaller diameter wire? Does their drift speed increase, decrease, or stay the same? If the drift speed change, what is the role the force that causes the change? Explain your reasoning.

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