Question

Prove that :

1)if the potential difference gets doubled , the current flowing through it also gets doubled.

2) if the potential difference is halved,the current flowing through it also gets halved .

3) if resistance is doubled , the current gets halved .

4) if resistance is halved , the current gets doubled.

please answer in brief , I need proof not statement​

Answer 1

Answer:

According to V = IR.

Rearranging,

➸ I = V/R.

1) The potential difference is doubled.

➸ I = 2V/R

➸ I = 2*V/R

➸ New current = 2*I

Current gets doubled.

2) The potential difference is halved.

➸ I = ½*V/R

➸ I = V/2R

➸ New current = I/2

Current gets halved.

3) If resistance is doubled.

➸ I = V/2R

➸ I = ½*V/R

➸ New current = I/2

Current gets halved.

4) If resistance is halved.

➸ I = V/½R

➸ I = V/(R/2)

➸ I = V*2/R

➸ I = 2V/R

➸ New current = 2I

Current gets doubled.

Answer 2

Answer:

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Explanation: