Electric charge — definition?
A property causing electric forces between objects.
Positive vs negative charge — difference?
Positive from protons, negative from electrons.
SI unit of charge?
Coulomb (C).
Atomic particles — protons, neutrons, electrons?
Protons (+), neutrons (neutral), electrons (-).
Protons — location?
In the nucleus.
Electrons — location?
Orbiting the nucleus.
Charging by rubbing — mechanism?
Transfer of electrons between materials.
Static electricity — cause?
Charge imbalance from electron transfer.
Induction — process?
Charge separation without contact.
Electric forces — attraction or repulsion?
Opposite charges attract; like charges repel.
Conductors — example?
Metals like copper or aluminum.
Insulators — example?
Glass, plastic, air.
Electric circuit — definition?
Closed path allowing charge flow.
Power source — role?
Provides potential difference.
Potential difference — symbol?
ΔV or V.
Electric current — formula?
I = q / t.
SI unit of current?
Ampere (A).
Measuring devices — types?
Ammeter (current), voltmeter (voltage).
Fuses — function?
Melt under high current to prevent damage.
Circuit breaker — operation?
Opens circuit when current exceeds safe level.
Answer 10 questions on Fundamentals of Electric Charge and Circuits.
1. What does electric charge refer to in physics?
2. What is the approximate mass of an electron?
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