Question

A current of 15A is drawn by a filanal of an electric bulb for 5min find the charges​

Answer 1

Answer

• 4500 Columbs

Given

• A current of 15 A is drawn by a filament of an electric bulb for 5 min

To Find

• The charges

Solution

Current , I = 15 A

Time , t = 5 min = 5 × 60 s

⇒ Time , t = 300 s

We know that , " Current is defined as no. of charges passing through the cross-section area of conductor per unit time "

$\implies \rm Current,I=\dfrac{Charge,Q}{Time,t}\\\\\implies \rm I=\dfrac{Q}{t}\\\\\implies \rm 15=\dfrac{Q}{300}\\\\\implies \rm Q=15 \times 300\\\\\implies \rm Q=4500\ Columbs$

More Info

• SI unit of Current , I is Ampere ( A )
• SI unit of Charge , Q is Columb ( C )
• SI unit of Time , t is Second ( s )