Question

What is difference between electric field and electric potential relative to distance between charges?

Answer #1

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State clearly the difference (a) between electric potential and
electric field, and (b) between electric potential and electric
potential energy.

An electric field has an electric field strength 6000. N/C at a
distance of 1.5 m. What is the strength of the field at a distance
of 6.0 m?
24. An alpha (α) particle is positioned in an electric field
such that the gravitational force acting on it is equal to the
electrostatic force.
(qα = 3.2 x 10–19 C and mα = 6.64
x 10–27 kg)
a) What is the direction of the
electric field at this point?...

In contrast to net electric field, when you calculate the
voltage (electrical potential) at a point in space relative to 0 V
(defined as the electric potential halfway between two equal and
opposite charges) – whether it’s due to the presence of one or more
large charges – it is critical for you to include the sign of the
Q’s that are creating the electric field. Why?

The electric field midway between two equal but opposite point
charges is 715 N/C , and the distance between the charges is 29.7
cmcm . What is the magnitude of the charge on each?

what's a similarity and difference between r finding the
electric field due to a set of discrete charges and finding the
electric field due to a continuous charge distribution?

Problem 1
Two charges are placed in an electric field a distance r from
each other. Charge q1 is positive while charge q2 is negative.
Select all possible changes that will double the electric force
between the two charges:
(a) change the sign of q2
(b) half the magnitude of q1 and half of r
(c) double the magnitude of q2 and take half of r
(d) take half of r
(e) double the magnitude of one of the charges...

Determine the electric potential energy for the array of three
charges in the drawing, relative to its value when the charges are
infinitely far away and infinitely far apart. (Let
q1 = 8.40 μC,
q2 = 18.8 μC,
and
q3 = −16.4 μC.)
J

Charges q1=3q and q2=7q are a distance L apart.
a) Calculate the electric field of q1 at the position
of q2
b) Calculate the force acting on q2
c) Calculate the total electric field at the midpoint
between q1 and q2
If somebody could explain this I'd really appreciate
it. Thanks!

Define Electric field
A. Two charges of equal magnitude and opposite signs separated
by a distance
B. unit of electric field
C. property of a material that is directly proportional to the
resistance of the material
D. ratio of electric force to charge
E. None of the above
ANSWER:

A) The electric force between two charges quadruple if the
distance between them halves (True,False)
B) A positive charge traveling along a magnetic field
experiences no magnetic force (True,False)

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