Point charges are located at the corners of a rectangle in the first quadrant: at

PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Point charges are located at the corners of a rectangle in the first quadrant:

q_1=+3\,\mu\text{C}

O(0,0)

q_2=-4\,\mu\text{C}

P(5\,\text{cm},0)

and

q_3=+2\,\mu\text{C}

Q(0,4\,\text{cm})

. A test charge

q=+1\,\mu\text{C}

is placed at

R(5\,\text{cm},4\,\text{cm})

. (i) Calculate the

x

-component of the net force on the test charge. (ii) Calculate the

y

-component of the net force on the test charge. (iii) Determine the magnitude of the net force on the test charge.