A silver wire has a resistivity of . If the wire has a length of meters and a cross-sectional area of , what is its resistance?
24. Electric Force & Field; Gauss' Law
Electric Charge
- Multiple Choice17views
- Multiple Choice
When a negatively charged rod touches a neutral metal sphere, what will happen to the excess electrons on the rod?
13views - Multiple Choice
An ungrounded conductor is also known as a
____ conductor.13views - Multiple Choice
If a current of flows through a circuit, how much time will it take for a charge of to pass through a point in the circuit?
13views - Multiple Choice
An isolated conductor has a net charge of . Which statement is true about the distribution of this charge?
6views - Multiple Choice
Which of the following is NOT a factor that affects the flow of electric current in a conductor?
11views - Multiple Choice
If a box is placed in a region where the field lines enter the box from one side and exit from the opposite side, with the same number of lines entering and leaving, does the box contain positive charge, negative charge, or no charge?
14views - Multiple Choice
A circuit contains a battery with an emf of . If the battery is connected to a resistor of , what is the current flowing through the resistor?
14views - Multiple Choice
If you transfer some electrons to a metal ball, what happens to the net electric charge of the ball?
11views - Multiple Choice
Which of the following changes would cause two oppositely charged objects to experience a greater attractive force between them according to Coulomb's law ()?
3views - Multiple Choice
Which type of current does a typical battery produce, and which type of current is generated at a commercial power station?
8views - Multiple Choice
Why is it possible for a bird to sit on a high-voltage wire without being electrocuted?
11views - Multiple Choice
In an experiment involving an electron beam, electrons are accelerated through a potential difference of . What is the speed of the electrons after passing through the potential difference, assuming non-relativistic speeds?
11views - Multiple Choice
In an electric circuit, what is the primary cause that makes electric charges move through the conductor?
11views - Multiple Choice
Metals are good conductors of electric current for which of the following reasons?
13views