Electricity 1
The unit of electrical resistance
What is an ohm?
temporary magnetization of an object caused by bringing the object near a magnet
What is magnetization by induction
A circuit in which loads are arranged in separate branches and current is divided among them
What is a parallel circuit?
The name for the imaginary lines which represent a magnetic field
What is lines of force?
A cell in which the electrodes are immersed in a liquid electrolyte
What is a wet cell?
The unit of electron current
What is an ampere?
Magnetization of an object by touching or stroking it with another magnet
What is magnetization by contact?
The characteristic of a material that hinders electron flow through it
What is resistance?
The term for magnets made from magnetically "hard" materials
What is permanent magnets?
What is an anode?
The unit of electrical power
What is a watt?
Magnetization process which produces electromagnets
What is magnetization by electricity?
A device that measure voltage
What is a voltmeter?
The invisible force that causes a magnet to attract certain objects to itself
What is magnetism?
When two or more electric cells are connected together as a source of current
What is a generator?
An automated switch that open a circuit in case of an overload
What is a circuit breaker?
What is ferromagnetic?
A condition in which the electrons in a circuit take a short cut and avoid the load
What is a short circuit?
The name for the stationary form of electricity
What is static electricity?
Electric current that flows in only one direction
What is direct current?
The part of a circuit that converts electrical energy into another useful form of energy, such as light, heat, or sound
What is a load?
The term for a group of aligned atoms with a single magnetic field
What is a domain?
A device that produces an electron current by a one- way chemical reaction
What is a voltaic cell?
The process of diverting electric charge directly into the earth
What is grounding?
Produces electricity when light shines on it
What is a solar cell?