What is the sum of the currents entering a junction is equal to the sum of the currents leaving the junction
100
Current
What is the amount of charge flowing past a point per unit time.
100
The current that flows when a 5.0 ohm resistor is has potential difference of 15V
What is 3.0A
100
Photo voltaic cell
What is a device that converts light energy into electrical energy.
200
Ampere
Unit of current, one coulomb per second
200
Kirchhoff's Voltage Law
What is around any loop of a circuit, the total potential difference is zero OR what is between any two points in a circuit, the potential difference is the same regardless of the path taken.
200
Resistivity
What is a constant of proportionality that is characteristic of a material, relating its area and length to its resistance
200
The charge that flows past a point in 3.0 s if the current is 2A
What is 6 C
200
Primary cell
What is a cell that makes use of an irreversible chemical reaction, and therefore cannot be recharged.
300
Electron volt
What is the work done to move one electron through a potential difference of 1 V
300
Ohm's Law
What is the resistance of a conductor is constant / current proportional to potential difference
if its temperature is constant;
300
Electric potential difference
What is energy per unit charge; (ratio idea necessary)
to move positive test charge between points;
300
The potential difference across the cells if three 1.5V cells are connected in parallel to one another
What is 1.5V
300
Secondary Cell
What is a cell that is composed of chemicals that can undergo a reversible chemical reaction, and thus be recharged
400
The unit of resistivity
What is the ohm-metre
400
Coles' Law
What is cabbage + vinegar = tasty!
400
Terminal voltage
What is the potential difference across the terminals of a cell; equal to the emf minus the loss due to internal resistance.
400
The terminal voltage if a 6V cell produces 2A of current and has an internal resistance of 1.5 ohms
What is 3V
400
Source of EMF
What is a device which can supply energy to an electric current
500
Ohm
What is the resistance that causes a potential difference of 1V when 1A of current passes through it.
500
The Kirchhoff Law that relates to the law of conservation of energy.
What is Kirchhoff's Voltage Law?
500
Electromotive force
What is the power supplied per unit current / the energy supplied per unit charge OR
work done per unit charge in moving charge completely around the circuit / power supplied per unit current;
500
A wire has a resistance of 2.0 ohms. If a second wire of the same material is twice as long and has double the radius, this is the resistance of the second wire.
What is 1.0 ohm?
500
A 12V battery with internal resistance 3 ohms is connected to two 6 ohm resistors that are in parallel with the battery. The power dissipated by one of the resistors.