12 Questions
What carries the electric current in metals?
Free electrons
In an ionic solution, which particles are attracted to the cathode?
Cations
What is the direction of electron flow in metals compared to conventional current?
Opposite to conventional current
What property is conserved according to Kirchhoff’s first law?
Charge
What does mean drift velocity represent in a material?
Average velocity of electrons
What property is represented by the number density, n, of a material?
Number of free electrons per unit volume
What is the SI base unit for electric current?
Amperes
How is the net charge of a particle affected by removing electrons from it?
The net charge becomes more positive
What is the charge of a proton in terms of the elementary charge, e?
+1e
What does an ammeter measure in an electrical circuit?
Current
Which statement describes the relationship between like charges?
They repel each other
What defines one coulomb of charge?
The flow of charge for 1 second when the current is 1 ampere
Learn about electric current, its definition as the rate of flow of charge, measurement in Amperes, and how it can be measured using an ammeter. Also, explore charge as a physical quantity measured in coulombs and its relationship with current.
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