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What will happen to the current in a circuit if the resistance is halved or doubled?


Posted- 1587 days ago
19 Answers

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If R is halved, Current will be Doubled

If R is doubled, current will be halved

        All this b coz, V=IR

 

current will also get changed

 

 

The current in a circuit is inversely proportional to the resistance. If the voltage stays the same and the resistance is changed, then the current is the voltage divided by the resistance. In this case the resistance is doubled so the current is halved, and if the resistance is halved the current will get doubled

 

If resistance is halved then current is doubled

and if resistance is doubled then current is halved

because V=IR,  

I=V/R

 

increased or decreased

 

If the current in the circuit has half the resistance then the cicuit can be broken.If the current in the circuit has doubled the resistance the the chances of the circuit being broken is quite slim.

 

by ohms law v=ir

if v is constant then i   1/r , this means if we double r then i will be half

& if we half r then i will be double

 

if resistance is halved then current is doubled because -

V=IR THUS I IS INVERSELY PROPOTIONAL TO R when resistance is doubled current is halved .......................

 

 1/R

So if resistance is halved, current is doubled and if resistance is doubled, current is halved..................

 

current in the circuit decreases........

 

If the resistance is halved, then:

V=I*R
V/R=I
V/1/2R=I
V*2/1R=I
2(V/R)=I,
therefore the current gets doubled.

If the resistance is doubled, then:

V=I*R
V/R=I
V/2R=I
1/2(V/R)=I,
therefore the current gets halved.

 

If the resistance is halved the current flow increases & if the resistance is doubled intensity of the current decreases. Because intensity of current & resistance are inversely propotional.

 

let the resistance of the circuit be R,I and V denote current and potential difference respectively.

Then,          V=IR

                  if resistence is halfed,

V=I*R/2                but the potential difference remains the same,

therefore              I gets doubled

similarly if the resistance in the circuit is doubled then the current in the circuit gets halfed.

 

If resistance would be half than current will be double

 

BUT if resistence is double than current is halved

 

as V=IR

 

If R is halved, Current will be Doubled

If R is doubled, current will be halved

        All this b coz, V=IR

 

The current in a circuit is inversely proportional to the resistance. If the voltage stays the same and the resistance is changed, then the current is the voltage divided by the resistance. In this case the resistance is doubled so the current is halved, and if the resistance is halved the current will get doubled

 

If R is halved, Current will be Doubled

If R is doubled, current will be halved

        All this b coz, V=IR

 

If the resistance is halved, then:

V=I*R
V/R=I
V/1/2R=I
V*2/1R=I
2(V/R)=I,
therefore the current gets doubled.

If the resistance is doubled, then:

V=I*R
V/R=I
V/2R=I
1/2(V/R)=I,
therefore the current gets halved.

 

as current is inversly proportional to resistance so if resistance is halved current will increase and if it is doubled current will become 1/4