WorksheetsElectrostatic
Total questions: 14
Worksheet time: 7mins
Electrostatics deals with interactions between
Moving electric charges
Stationary electric charges
Magnetic fields
Thermal energy
Static electricity is caused by
Balanced charges
Imbalance of positive and negative charges
Flow of electric current
Heating of materials
Which method involves rubbing two objects together to transfer electrons?
Induction
Grounding
Conduction (contact)
Friction
Charging by induction requires
Physical contact
Rubbing a material
A charged object brought near a conductor without touching
Heating the object
What is the purpose of grounding?
Increase voltage
Remove excess charge
Increase capacitance
Produce spark
Electrostatic ignition hazards occur in the following sequence:
Charge accumulation → charge separation → discharge
Charge separation → charge accumulation → discharge
Discharge → charge accumulation → charge separation
None of the above
Bonding metal parts in tanker operation prevents:
Overheating
Magnetic attraction
Spark discharge between metal objects
A capacitor is a device that
Dissipates electric charge
Stores electric charge
Converts charge to heat
Amplifies current
The SI unit of capacitance is
Ampere
Coulomb
Ohm
Farad
Capacitors in parallel have equivalent capacitance
1/Ceq = 1/C1 + 1/C2 + ...
Ceq = C1 + C2 + ...
Ceq = C1 × C2
Ceq = C1 – C2
Capacitors in series have equivalent capacitance
Ceq = C1 + C2 + ...
Ceq = C1 × C2
1/Ceq = 1/C1 + 1/C2 + ...
Ceq = C1 – C2
In a parallel-plate capacitor, the capacitance increases when
Plate area decreases
Distance between plates increases
Dielectric constant increases
Voltage decreases
Simplest form of capacitor consists of ______ plates which are separated by an insulating material known as a ______
four, conductor
four, dielectric
two, insulator
two, dielectric
The formula for charge stored is
Q = V/C
Q = C/V
Q = CV
Q = C – V
