The ampere is the SI unit for electric current. The definition of an ampere is:

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The flow of charge per minute.

The rate of flow of 1-coulomb charge per second.

The rate of flow of 2-coulomb charge per second.

The rate of change of resistance per unit potential difference.

answer is B.

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Detailed Solution

Electric current: An 'electric current' in a conductor is the flow of charge in the conductor when a potential difference is maintained between the conductor's ends. In other terms, 'electric current' refers to the pace at which charge flows.

If an amount of charge Q flows in an electric circuit in t seconds, the electric current (I) in the circuit is given by:

I = Q/t - The 'ampere' is the SI unit of electric current (A) In the SI system, an ampere is a basic unit. The ampere is defined as the force acting between two parallel current-carrying conductors.

If Charge Q = 1 coulomb, t = 1 seconds, then i =1 ampere thus

1 ampere = 1 coulomb/second.

Therefore, option 2 is the correct answer.

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