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Class 12 · Physics · Medium
→If the magnitude of a target charge becomes five times larger and its sign is reversed, what happens to each force exerted on it by external charges?
Class 12 · Physics · Hard
→A negative target charge has a nine-times-positive charge above it at distance 3 units and a positive charge below it at distance 1 unit. What is the net force on the target?
Class 12 · Physics · Hard
→A positive target charge has an eight-times-negative charge to its left at distance 2 units and a thirty-two-times-negative charge to its right at distance 4 units. What is the direction of the net force?
Class 12 · Physics · Hard
→A positive target charge has an eight-times-positive charge to its left at distance 2 units and a sixteen-times-negative charge to its right at distance 4 units. What is the direction of the net force on the target?
Class 12 · Physics · Hard
→If the electrostatic force must become one-sixth of its original value while the product of the charges becomes two-thirds of its original value, what change in separation is required?
Class 12 · Physics · Hard
→If the electrostatic force must become three times its original value while the product of the charges becomes twelve times larger, what change in separation is required?
Class 12 · Physics · Medium
→If the electrostatic force must remain unchanged while the separation between two charges is made seven times larger, how must the product of the charges change?
Class 12 · Physics · Medium
→The electrostatic force between two charges in air is 90 N. In a medium, the force becomes one-ninth of its air value, while both charges are made three times their original values. What is the new force?
Class 12 · Physics · Hard
→The force between two charges in air is two hundred newtons. In a medium, the force becomes one fourth of its air value, while the separation is halved. The charges remain unchanged. What is the new force?
Class 12 · Physics · Medium
→Two equal nonzero forces act on a charge. What angle must lie between them for the net force to be zero?
Class 12 · Physics · Medium
→A charge has a twenty-eight-newton rightward force and a twenty-one-newton upward force. What is the magnitude of the resultant force?
Class 12 · Physics · Medium
→A charge experiences a forty-newton westward force and a nine-newton northward force. In which direction will the resultant point?
Class 12 · Physics · Medium
→A target charge experiences a sixteen-newton eastward force and a thirty-newton northward force. What is the magnitude of the resultant force?
Class 12 · Physics · Hard
→A negative target charge has an eight-times negative charge on the left at distance two and a positive charge on the right at distance one. What is the net force direction?
Class 12 · Physics · Hard
→A positive target charge has a nine-times negative charge on the left at distance three and a four-times negative charge on the right at distance two. What is the net force?
Class 12 · Physics · Hard
→A negative charge is exactly midway between two equal positive charges. If the left outer positive charge is made five times larger, what is the net force on the negative charge?
Class 12 · Physics · Hard
→A positive charge is exactly at the midpoint between two equal positive charges. If the left outer charge is reduced to one fourth, what is the net force on the middle charge?
Class 12 · Physics · Hard
→A positive target charge has a thirty-two-times positive charge on the left at distance four and a six-times positive charge on the right at distance two. What is the net force direction?
Class 12 · Physics · Hard
→A positive target charge has a 12-times positive charge on its left at distance 2 units and a 3-times positive charge on its right at distance 1 unit. What is the net force direction?
Class 12 · Physics · Hard
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