Coulomb's law of electrical forces is mathematically described as
A) F = q1q2/r2.
B) F = q/r2..
C) F = q1q2/r.
D) F = q2/r.
Correct Answer:
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Q10: An ampere is
A)coulomb/sec.
B)(coulomb)(sec).
C)(volt)(ohm).
D)ohm/volt.
Q11: Electric insulators
A)convert electrical energy into heat.
B)consist of
Q12: When an electric current flows through a
Q13: A charge would lose most of its
Q14: When the atomic valence and conductance bands
Q16: If 20 volts of potential difference causes
Q17: The unit of electrical power is
A)joule.
B)volt.
C)ampere.
D)watt.
Q18: The charge on each of two objects
Q19: The resistance in a wire decreases as
Q20: Ohm's law is mathematically described as
A)C =
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