Question

-describe the motion of charge through the circuit using physics terminology like “charge”, “electric field”, and “electrical energy”.

-• How can you use voltmeters and ammeters to measure different characteristics of electrical components and circuits? Why are these measurements important?

Answer #1

Do charges released from rest always move along electric field
lines; i.e., does the charge stay on the E field line at which it
started?
b) Based on your answer to a), would charges released with an
initial velocity always move along electric field lines?
c) Using kinematic quantities like position, velocity, and
acceleration as well as the concept of a force to describe the
general character of the motion of a [+] charge in motion near a
single [+]...

In a constant uniform electric field, a particle with charge
−100 ?? is moved from the origin a distance ? = 0.80 ? straight in
the direction of the electric field lines. The field has a strength
of 5.0 ? ? .
a) What is the voltage difference between the initial and final
position?
b) How much work is done to move the charge?
c) Does the charge gain or lose electrical potential energy in
the process of this move?...

Energy in Resonant Circuits: Consider how the
energy flows around different components of a circuit at
resonance.
General Role of Circuit Components: In general, where
is energy input into the circuit? Where is energy taken out of the
circuit? Where is energy stored in the circuit?
Analyzing Power through Components: To see how the
energy flows between different components, we should understand
what the power is through various components at different times.
Consider a resonant circuit with (for simplicity) L=R=C=V0=1...

1.The electric field at a distance of 2 mm from a test charge is
_____the field at a distance of 4 mm
a. The same as
b twice as strong as
c four times as strong as
d 1/4 as strong as
e have as strong ass
2. an electrical field contains two charges ANB. If the
charges are doubled to be to a N to be, what would happen to the
force on charge a?
a The same as...

Question 1)
a. Describe qualitatively but specifically how the circuit
quantities change after the switch is closed in the circuit a)
current b) voltage across the capicitor. Explain why these
quantities change as they do, in terms of motion and presence of
the capacitor.
b. Imagine repeating the timing experiments you can in this lab,
only this time starting with a partially-charged capacitor.
Describe how the timings differ from above, explaining how this
difference originated from specific electrical quantities in...

A simple circuit can be created using a voltage source of some
form, let's say a battery, and a load, something that converts
electrical energy into some other form of energy. An example of a
load might be the thin wire filament in a light bulb, where the
electrical energy is being converted into thermal energy and light
energy. The resistance is a property of the load that determines
how much current flows through the load.
Ohm's Law relates the...

Lab 20: Electric Field and Potential
Pre Lab Questions (Part 2)
6. How can you tell from an electric field map whether an
electric field is strong or weak?
7. What would the electric field lines look like if the electric
field was constant?
8. Can there be a point in space where there is an electric
potential but not electric field? Can there be a point in space
where there is an electric field but no electric potential? Explain...

The direction of the magnetic force on an electron moving
through a magnetic field is the same as the direction of the vector
formed by taking the cross product of the velocity with the
magnetic field (v x B).
True/ False
The magnetic field is also referred to as the magnetic flux
_____________ [one word].
Consider a particle moving through a magnetic field. If the
magnetic field doubles and the velocity of the particle halves, the
magnetic force will:...

PART 1: THE ELECTRIC FIELD
Procedure: Assemble in groups of 2-3 around the pod computers. You
may also use a laptop or tablet. Open the Charges and Field
simulation:
http://phet.colorado.edu/en/simulation/charges-and-fields
and click on the “play” symbol to open. Once the simulation opens,
check the box next to grid. Your instructor will show you a few
things about this simulation before you begin.
Explore: Answer all questions and all parts below.
1. First, explore by placing a 1 nC positive charge...

Problem 10 A vertical
line of charge starts at y = -a and ends at y = 0. A charge Q is
uniformly distributed on this line. The point P1 is
located at the coordinate (x, 0), where x is a positive number.
(a) Draw a clear
picture of the situation, including the point P1. Use
this picture to help explain if there are any symmetries you can
use to determine the electric field at point P1.
(b) Find the...

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