Electrostatics Quiz

What happens when a negatively charged rod touches a neutral metal sphere?

• The rod loses all its charge
• The sphere gains a positive charge
• Both objects share a negative charge
• The sphere remains neutral

In the process of charging by induction, what occurs first?

• Grounding the neutral object
• Polarization of the neutral object
• Direct contact with a charged object
• Removal of grounding

What is the effect of grounding a positively charged object during induction?

• It increases the positive charge
• Electrons flow from the ground to neutralize the positive charge
• It has no effect
• It creates a magnetic field

How does the strength of an electric field change with distance from the charge?

• It increases with distance
• It decreases with distance
• It remains constant
• It fluctuates randomly

What does the density of electric field lines indicate?

• The type of charge
• The strength of the electric field
• The direction of the charge
• The temperature of the charge

If a small positive charge is placed in the electric field of a negatively charged object, what will happen?

• It will repel the negative charge
• It will remain stationary
• It will be attracted towards the negative charge
• It will gain a negative charge

What is the primary difference between charging by contact and charging by induction?

• Contact involves direct transfer of charge, while induction does not
• Induction requires physical touch, while contact does not
• Both processes are identical
• Induction is faster than contact

When a charged object induces a charge in a neutral object, what happens to the charges in the neutral object?

• They remain unchanged
• They are neutralized
• They become polarized
• They gain a net positive charge

What is the direction of an electric field around a positive charge?

• Towards the charge
• Away from the charge
• In a circular motion
• It varies randomly

What occurs when the grounding connection is removed after charging by induction?

• The object loses all charge
• The object retains a net negative charge
• The object becomes neutral
• The object gains a positive charge