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atoms
All materials are made of...
negative
The charge on an electron is...
positive
The charge on a proton is...
no charge
Neutrons have...
repel
Like charges...
attract
Different charges...
rubbing
An insulator can become charged by...
coulomb meter
Charge can be detected using a...
electric field
An area of space where a charged particle experiences a force is known as an...
strength and direction of an electric field.
Lines of force are used to show the...
stronger
The closer the field lines the ________ the force.
positive
Field lines start on a __________ charge.
negative
Field lines end on a ________ charge.
individual point forces
attractive point sources
charged parallel plates
current
The flow of charge per second.
amperes
Current is measured in...
ammeter
Current is measured using an...
Q = It
The relationship that links current, charge and time is...
10 A
An electric charge of 1200 C flows
through an electric heater in 2
minutes. Calculate the current in
the heater?
Direct current
This type of current flows in one direction only.
Alternating current
This type of current changes direction a number of times each second.
greater than
The peak voltage of an ac supply is always _______ ______ the quoted voltage.
50 Hz
Mains frequency is...
230 V
Mains voltage is...
