Electric charge on an object is measured as 5 micro-coulombs. The value of this charge can be expressed in terms of base units as:
Correct answer: B. 5 x 10^-6 ampere second
- A. 5000 ampere second
- B. 5 x 10^-6 ampere second
- C. 5 x 10^6 coulomb second
- D. 500 coulomb second
Explanation
The following is the solution:Electric charge is a derived quantity, and its base unit is the coulomb (C), which is defined as the charge carried by a current of one ampere (A) in one second (s).So, 1 C = 1 A s.The prefix "micro" (μ) represents a factor of 10-6. Therefore, 5 microcoulombs (5 μC) can be expressed as:5 μC = 5 x 10-6 CTo express this value in terms of base units, we need to substitute the base unit of charge (coulomb) into the equation:5 x 10-6 C = (5 x 10-6 A) x 1 sSo, the value of 5 microcoulombs can be expressed in terms of base units as 5 x 10-6 ampere second, which is option B.
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