Download Descriptive Physics Electric Field Worksheet

Descriptive Physics Electric Field Worksheet
1) A) If you put in10 joules of work to push 1 coulomb of charge against an electric
field, what will be its voltage with respect to its starting position? B) When
released what will be the kinetic energy of the charge when it returns to its
original position?
2) A 2 coulomb charge is moved in an electric field from a voltage of 2 V to one of
10V.
a. How much work does this require?
b. What is the electrical potential energy of the charge at this new location?
3) At a particular point near a second charge, a 50 microcoulomb charge experiences
a force of 2.0 N. What is the electrical field strength at that point? (Hint: 1
microcoulomb = 1 x 10 –6 C )
4) When placed near another charge, a 20 microcoulomb charge experiences an
attractive force of 0.080 N. What is the electric field strength at that location?
(Hint: 1 microcoulomb = 1 x 10 –6 C )
5) A 12 microcoulomb charge is located in a 350 N/C electric field. What is the
force the charge experiences? (Hint: 1 microcoulomb = 1 x 10 –6 C )
6) A) If you do 12 J of work to push 0.001 C of charge from point A to point B in an
electric field, what is the voltage difference between points A and B? B) When
the charge returns to A what will be its kinetic energy? C) When the charge
returns to A what will be its electrical potential energy?
7) Suppose you start with a charge of 0.002 C in an electric field and find that it
takes 24 Joules of work to move the charge from point A to point B. A) What is
the voltage difference between point A and B? B) What is the charges kinetic
energy when it flies back past A?
8) What is the voltage at the location of a 0.0001-C charge that has an electric
potential energy of 0.5 J?
9) The potential difference between a storm cloud and the ground is 5.0 x 107 volts.
During a lightning flash 3.0 coulombs of charge are transferred to the ground.
How much energy is transferred to the ground in this lightning flash?
10) In a hydrogen atom, the proton and the electron (q=1.6 x 10 –19 C) are separated
by an average distance of 5 x 10 –11 m.
a. What is the electric force between the proton and electron?
b. What is the electric field of the proton at the distance of the electron?