if the voltage is high enough the air molecules will ionise and a spark discharge occurs
DESCRIPTION
P2 4.3 Uses and dangers of static electricity. If the voltage is high enough the air molecules will ionise and a spark discharge occurs . -. Ionisation is the ability to remove electrons from atoms leaving a trail of positive ions. DISCHARGING UNSAFE STATIC. - PowerPoint PPT PresentationTRANSCRIPT
If the voltage is highenough the air molecules will ioniseand a spark dischargeoccurs.
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Ionisation is the ability to remove electrons from atoms leaving a trail of positive ions.
P2 4.3 Uses and dangers of static electricity
DISCHARGING UNSAFE STATIC
Electrons are transferred fromthe pipe to the fuel by friction.
A high voltage could cause an explosion so:* Fuel tank is earthed with a copper conductor* fuel tank and plane are connected
A spark is thought to have causedthe huge explosion in December 2005at the Buncefield oil depot North of London
A spark is thought to have causedthe huge explosion in December 2005at the Buncefield oil depot North of London
HOW A PHOTOCOPIER WORKS
ORIGINAL Copying plate is charged
ORIGINAL isprojected onto copying plate
HOW A PHOTOCOPIER WORKS
ORIGINAL Copying plate is charged
ORIGINAL isprojected onto copying plate
Light makescharge leakaway
Black powder attaches to remaining charges
Powder is transferred to copying paper
Light makescharge leakaway
Black powder attaches to remaining charges
Powder is transferred to copying paper
Paper is heated to ‘fix’ image
