Object A , which has been charged to + 16 nC , is at the origin. Object B , whic

Question

Object A , which has been charged to + 16 nC , is at the origin. Object B , which has been charged to 28 nC , is at (x,y)=(0.0cm,2.0cm) .

Part A

What is the magnitude of the electric force on object A ?

Express your answer using two significant figures.

Part B

What is the magnitude of the electric force on object B ?

Part C

What is the direction of the electric force on object A ?

What is the direction of the electric force on object A?

negative y -axis

Part D

What is the direction of the electric force on object B ?

What is the direction of the electric force on object B?

positive x -axis positive y -axis negative x -axis

negative y -axis

Part D

What is the direction of the electric force on object B ?

What is the direction of the electric force on object B?

positive x -axis positive y -axis negative x -axis negative y -axis

Explanation / Answer

given,

magnitude of charge of first particle = 16 nC

magnitude of charge of second particle = -28 nC

force between two charged particles = k * q1 * q2 / d^2

force = 9 * 10^9 * 16 *10^-9 * - 28 * 10^-9 / 0.02^2

force = -0.01008 N

magnitude of the electric force on object A = 0.01008 N

magnitude of the electric force on object B = 0.01008 N

since the force is of attractive nature since both the chares are of oposite charge

so,

direction of the electric force on object A is toward postive y axis

direction of the electric force on object B is toward negative y axis

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