Electric Charge

Topic Page

Questions

• What is the SI unit to express the charge possessed by an object?
• How does charging by induction work?
• Does charging by induction or conduction occur during a thunderstorm?
• Can you explain how a neutral object can be attracted to a charged object?
• Does the electrical gradient always oppose the movement of charge?
• How does static electricity related to the net charge of an object?
• Is electric charge a physical property of matter?
• What are some examples of electric charges?
• What is an of an example electric charge practice problem?
• Why is the electric charge of a body quantised?
• How can electric charges be produced by rubbing?
• How are electric charges produced?
• How do electric charges interact?
• How do electric charges exert forces?
• How do electric charges create magnetic fields?
• How does humidity affect electric charge?
• What electric charge does a neutron have?
• What electric charge does an antiproton have?
• What electric charge is characteristic for an ion of oxygen?
• Why is electric charge a scalar quantity?
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• What does it mean when two point charges form a dipole a small distance away from each other?
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• A copper wire of cross-sectional area 2.0 #mm^2# carries a current of 10 A. How many electrons pass through a given cross-section of the wire in one second ?
• Why is the electric charge on a solid object always explained in terms of an excess or deflcit of electrons?
• How many excess protons are in a positively charged object with a charge of +398 mC (millicoulombs)?
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• A student rubs two balloons against her and and then hair puts the balloons next to each other. The balloons move away from each other. Why?
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• Can you charge a conductor (like a metal) rubbing?
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• Who perfected the incandescent lightbulb?
• What protects you from getting a shock when you touch a live wire?
• If current passes through a solenoid, will two consecutive loops move towards or away from each other and why?
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• Find the components of the resultant force on it along&perpendicular to the string?
• How does the Franklin model explain a negative charge on an object?
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• A sphere has a negative charge of #6.4 xx 10^-7# coulombs. Approximately how many electrons must be removed to make the sphere neutral?
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• Consider a system of three point charges ont the x axis. Charge 1 is at x=0, charge 2 is at x=0.20m, and charge 3 is at x = 0.40m. In addition, the charges have the following values: q1 = -19uC, q2=q3=+19uC. Find the the point where E =0 between x =0.20m?
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• Three metallic plates each of area A are kept as shown in figure and charges #q_1,q_2,q_3# are given to them find the resulting charge distribution on the six surfaces , neglecting edge effect ?
• What number of electrons would carry a total charge of one coulomb?
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• When the velocity of a relativistic charged particle increases, its specific charge?
• How would I answer this question about charges?