# Transcribed Image Text: 21.96 •. Two charges are placed as shown in Fig. P21.96. The magnitude of q1 is 3.00 puC, but its sign and

Transcribed Image Text: 21.96 •. Two charges are placed as
shown in Fig. P21.96. The magnitude
of q1 is 3.00 puC, but its sign and the
value of the charge q2 are not known.
Figure P21.96
P
5.0 cm
12.0 cm
The direction of the net electric field
E at point P is entirely in the negative
y-direction. (a) Considering the different
possible signs of qq and q2, four possible diagrams could represent the electric
fields Éj and E2 produced by q1 and q2. Sketch the four possible electric-
field configurations. (b) Using the sketches from part (a) and the direction of
E, deduce the signs of q1 and q2. (c) Determine the magnitude of E.
13.0 cm
92 Transcribed Image Text: In problem 21.96 of your book, University Physics 15th edition (see End of the Chapter 12 section), what is
the magnitude of the electric field (in N/C)? (Don’t use scientific notation for expressing a very small or very
large number)