The electric field midway between two equal but opposite point
charges is 651 N/C, and the...
The electric field midway between two equal but opposite point
charges is 651 N/C, and the distance between the charges is 15.6
cm. What is the magnitude of the charge on each?
First significant figure of answer: 200. pC
Answer to 3 significant figures.
(Recall: The metric prefix 'pico' (p) means 10-12)
Solutions
Expert Solution
The answer must be 220pc rather than 200 pc. We can round off it
to 200 pc but that would make the electric field at midway to be
much smaller than what is given.
The electric field midway between two equal but opposite point
charges is 567 N/C , and the distance between the charges is 16.0
cm.
a)What is the magnitude of the charge on each?
What is the magnitude of the electric field at a point midway
between a −6.5μC and a +8.2μC charge 8.4 cm apart? Assume no other
charges are nearby. And what is the direction of the electric
field?
What is the magnitude of the electric field at a point midway
between a −6.5μC and a +5.0μC charge 10cm apart? Assume no other
charges are nearby. Express your answer using two significant
figures.
What is the magnitude of the force a +20 μC charge exerts on a
+3.3 mC charge 39 cm away?
What is the magnitude of the electric field at a point midway
between a −7.7μC and a +6.2μC charge 10cm apart? Assume no other
charges are nearby.
What is the direction of the electric field?
Two charges of opposite sign and equal magnitude Q = 2.0 C are
held 2.0 m apart. Determine the magnitude and direction of the
electric field at the point P.
What is the electric field generated at point M by the two
charges shown below? Q1 is 0.19mC and Q2 is 0.74mC: the two charges
are a distance 34.3m from each other and the point M is located
17.7m from Q1.
The electric field between two parallel plates is uniform, with
magnitude 576 N/C. A proton is held stationary at the positive
plate, and an electron is held stationary at the negative plate.
The plate separation is 4.06 cm. At the same moment, both particles
are released.
(a)
Calculate the distance (in cm) from the positive plate at which
the two pass each other. Ignore the electrical attraction between
the proton and electron.
_______cm
(b)
Repeat part (a) for a sodium...
Two identical point charges (q = +3.00 x 10-6 C) are fixed at
opposite corners of a square whose sides have a length of 0.580 m.
A test charge (q0 = -3.00 x 10-8 C), with a mass of 7.50 x 10-8 kg,
is released from rest at one of the corners of the square.
Determine the speed of the test charge when it reaches the center
of the square.
Two identical point charges (q = +5.80 x 10-6 C) are fixed at
opposite corners of a square whose sides have a length of 0.320 m.
A test charge (q0 = -7.90 x 10-8 C), with a mass of 6.20 x 10-8 kg,
is released from rest at one of the corners of the square.
Determine the speed of the test charge when it reaches the center
of the square.