In metals, an electric current is
A) a rapid drift of electrons from negative to positive.
B) a rapid drift of electrons from positive to negative.
C) an extremely-slow drift of electrons from negative to positive.
D) an extremely-slow drift of electrons from positive to negative.
Correct Answer:
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Q12: A 'positive ion' is an atom with
A)
Q13: A 'positive ion' will tend to attract
A)
Q14: A 'free electron' is an electron released
Q15: If the outer shell of an atom
Q16: If the outer shell of an atom
Q18: A general definition of electric current is
A)
Q19: Silver, copper,and aluminium are examples of practical
A)
Q20: Ceramics, glass, and plastics are examples of
Q21: An electrical conductor is normally electrically
A) positive.
B)
Q22: A 'displacement current' is
A) a flow of
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