Question

Q16-(a) Define the term ‘coulomb’.

(b)What is an electric circuit? Distinguish between an open and a closed

circuit

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Answer 1

Answer:

(a) Coulomb, unit of electric charge in the metre-kilogram-second-ampere system, the basis of the SI system of physical units. It is abbreviated as C. The coulomb is defined as the quantity of electricity transported in one second by a current of one ampere.

Explanation:

(b) An open circuit is an incomplete circuit and current does not flow though it, while a closed circuit is a complete circuit and current flows through it.

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Answer 2

coulomb

the SI unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.

If they form a continuous closed path through which current can circulate, the circuit is said to be a closed circuit. When the circuit is not closed, no current flows through it and it is then said to be an open circuit.