Question

The resistance of an electrical component remains constant while the potential difference across it decreases to half its former value. What change will occur in the current passing through it?

Answer 1

I=(V/2)/R
=1/2(V/R)
=1/2( current passing in the first case)
Hence the current in the new case will become half of the former value

Answer 2

♤ We know that

I = V/R

If V' = V/2

I' = V'/R

= V/2R

= 1/2

Therefore , the current will also become half of its previous value.