Bright Tutorials Bright Tutorials
CBSE Class 10 Science Question 27 of 41

Electricity — Question 3

Back to all questions
3
Question

Question 3

Let the resistance of an electrical component remain constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it?

Answer

According to Ohm's Law:

I = VR\dfrac{\text{V}}{\text{R}}

Given, the potential difference decreases to half of its former value, keeping the resistance constant

V2 = V2\dfrac{\text{V}}{2} , R2 = R, I2 = ?

Substituting the values we get,

I2 = V2R\dfrac{\text{V}}{2\text{R}} = I12\dfrac{\text{I}_1}{2}

Therefore, the current flowing through the electrical component is reduced by half.