What is the effect on the current through a circuit of steady resistance when the voltage is...

Question:

What is the effect on the current through a circuit of steady resistance when the voltage is increased by a factor of 3? Find the ratio of the current after the change of voltage Ifinal1 and the current before the change of voltage Iinitial1

Ohm's law:

According to ohm's law, the current passing through a conductor is directly proportional to the potential difference applied across its two ends i.e.

{eq}\begin{align} I&\propto V\\ or\ \ \ I&= \frac{V}{R}\\ or\ \ \ \ V&= IR \end{align} {/eq}

Where;

  • I is the current
  • V is the voltage
  • R is the constant of proportionality called resistance.

Answer and Explanation:

Let;

  • Steady resistance of the circuit be R.
  • Initial voltage be {eq}V_{1} = \text{V} {/eq},

When the voltage is increased by a factor of 3 it...

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