Science, asked by Anonymous, 1 year ago

let the resistance of an electrical component remains constant while the potential difference across two ends of the conductor decreses to half of its former value what change will occur in the current through it

Answers

Answered by UnknownDude
593
By Ohm's law
V=IR
R remains constant so,
R=V/I
V gets halved
V→V/2
But R remains constant
so
R=(V/2)/x                    (x is the new current)
x=V/2R
I=V/R
substitute I in x equation
x=I/2
So when potential gets halved, current also gets halved.

Anonymous: ok
Anonymous: but can this answer will give full marks in boards
Anonymous: sams answer?
Anonymous: then so i said that it is partially right as you have also given half marks to it
Anonymous: got it
Anonymous: well thankyou so much for your help
Anonymous: both of you
Answered by dackpower
87

The amount of current flowing through the electrical component is reduced by half.

Explanation:

According to Ohm’s law

V = IR

where

V= potential difference

I= Current

R = Resistance

By modifying the equation

I=V/R ——- (i)

potential difference across the two ends of the component decreases to half

therefore, the new potential difference be Vʹ=V/2

Resistance remains constant across the electrical component

new current is drawn by the electrical component is Iʹ = Vʹ/R

= (V/2)/R        {Substituting Vʹ=V/2 in the above equation}

= (1/2) (V/R)

= (1/2) I = I/2

Hence the amount of current flowing through the electrical component is reduced by half.

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