Question

120 milli coulomb of charge transferred in 2 nano seconds through a wire.find the current flowing through the wire

Answer 1

S O L U T I O N :

Given,

• Electric charge (Q) = 120 mC ⟶ 0.12 C
• Time (t) = 2 nano second ⟶ 2 × 10^{-9} sec

We need to find,

• The current flowing through the wire.

Explanation,

We know that,

I = Q/t

[ Put the values ]

⟶ I = 0.12/2 × 10^{-9}

⟶ I = 0.6 × 10^{-9}

⟶ I = 6 × 10^{-10} A

Therefore,

The current flowing through the wire is 6 × 10^{-10} Ampere.

Answer 2

Question :-

120 milli coulomb of charge transferred in 2 nano seconds through a wire.find the current flowing through the wire.

Answer :-

• Current flowing through the wire is 6 × 10^{-10} Ampere.

Given :-

Charge transferred = 120 mC

Converting in Coulomb :-

0.12 C

Time Taken = 2 nano second

Converting into sec :-

2 × 10^{-9} sec

Have to Find :-

What's the current flowing through the wire ?

Calculations :-

Here we go !

As we all know

$\: \: \: \: \: \large{ \bf{ \boxed{ \bold{ I = \dfrac{Q}{t} }}}}$

Where ,

Current = " I "

Charge = "Q "

Time = "T "

Substituting the values in the above formula :-

I = 0.12/2 × 10^{-9}

I = 0.6 × 10^{-9}

I = 6 × 10^{-10} A

Hence ,

The current flowing = 6 × 10^{-10} Ampere.

Additional Information :-

✦ What is Current ?

↠ Current is the rate at which electrons flow past a point in a complete electrical circuit. At its most basic, current = flow.

↠ It expresses the quantity of electrons (sometimes called "electrical charge") flowing past a point in a circuit over a given time.

✦ How to calculate Current ?

↠ Current is usually denoted by the symbol I. Ohm's law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm's law is I = V/R.

✦ What is the unit of Charge and Electric Current ?

↠Unit of electric charge is coulomb or C, unit of electric current is ampere or A.

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