Question

1. What does an electric circuit mean?
2. Define the unit of current.
3. Calculate the number of electrons constituting one coulomb of charge.​

Answer 1

Answer:

1. A continuous conducting path consisting of wires and other resistances and a switch between the two terminals of a cell or a battery along which an electric current flow is called a circuit.

2. SI Unit of current is ampere(A). If one coulomb of electric charge flows through any section of a conductor in one second, then the current through it is said to be one ampere.

3. Charge is flow of number of electrons. Whereas, One electron possesses a charge of 1.6 × 10−19 C, i.e., 1.6 × 10−19 C of charge is contained in 1 electron. Hence, 6x1018 electrons constitute one coulomb of charge.

Answer 2

Explanation:

1) A continuous and closed path of an electric current is called an electric circuit.

2) electric current is expressed by a unit called ampere (A) ,named after french scientist Andre Marine ampere . 1 ampere is constituted by the flow of one column of charge per second that is

1A=1C/1s.

3) the SI unit of electric charge is column c which is equivalent to the charge containing in nearly 6×10^18 electrons.