Question

An electric bulb draws a current of 0.25A for 20 minutes . Calculate the electric charge that flows through the circuit

Answer 1

Given :-

• Current (I) = 0.25 A

• Time (t) = 20 min = 20 × 60 = 1200 sec

To find :-

• The electric charge that flows through the circuit.

Solution :-

we know that,

$\blue{\bigstar}\:\:{\underline{\boxed{\bf\red{I=\dfrac{Q}{t}}}}}$

• Current (I)
• charge (Q)
• time (t)

Putting all the values in this formula,

$\rm\longrightarrow\:0.25=\dfrac{Q}{1200}$

$\rm\longrightarrow\:Q=0.25\times{1200}$

$\rm\longrightarrow\:Q=300\:C$

Hence,the electric charge flow through the circuit will be 300 coulombus.

More Information :-

There are two types of charge :-

• Positive charge
• Negative charge

Properties of electric charges :-

• Opposite charges or unlike charges attract each other.

• Similar charges or like charges repel each other.

❒ The SI unit of electric charge is column which is denoted by the letter C.