Theory
This is a negatively charged particle.
What is an electron?
The resistance of a conductor is ___________.
What is low?
Like charges do this to each other.
What is repel each other?
Batteries usually have this kind of terminals and this many of each.
What are 1 positive and 1 negative?
A circuit has a voltage of 7.0 V and a resistance of 12 ohms. This is its current.
What is 0.58 amps?
The SI units of resistance, current, and potential difference are ____________.
What is the ohm, the ampere, and the volt?
This happens to the resistance of a superconductor when the temperature drops below the critical temperature.
What is drops to zero?
The electric force between charged particles is
a) attractive
b) repulsive
c) both
d) neither
What is c) both?
A circuit breaker acts as a switch, creating this kind of circuit when current is too high.
What is open?
A circuit has a current of 8.0 amps and a resistance of 7.0 ohms. This is the voltage.
What is 56 V?
This is the opposition posed by a material to the flow of current.
What is resistance?
What is a superconductor?
Electric force between charges varies in this way with distance and mass.
What are increases with increased mass and decreased distance (or similar)?
What is a series circuit?
A circuit has a voltage of 24 V and a current of 40 amps. This is the resistance.
What is 0.60 ohms?
Current is produced when charges are accelerated by an electric field to move to a position of lower ___________.
What is potential energy?
The ____________ of a light bulb is determined by a filament's resistance.
What is brightness?
Electric field lines show the _____________ and ____________ of an electric field.
What are strength and direction?
Individual components in a parallel circuit experience the same _____________.
a) voltage
b) power
c) dissipation
d) current
What is voltage?
A circuit has a current of 45A and a voltage of 9V. This is the power output of the circuit.
What is 405 W?
Whether or not charges will move in a material depends partly on how tightly these particles are held in the atoms of the material.
What are electrons?
In most cases, temperature and resistance have this relationship.
What is as temperature goes up, so does resistance (or something similar.)
Every charged particle produces a ____________ field.
a) negative
b) positive
c) electric
d) magnetic
What is magnetic?
The rate at which charges move through a conductor is called _________________.
What is current?
A circuit produces 800 W of power with a voltage of 6.00 V. This is the current.
What is 133 A?