Question

How much voltage would be necessary to generate 15 amps of current in a circuit that has 3 ohms of resistance?

Answer 1

Given:

Resistance of circuit, R= 3Ω

To Find:

Voltage that can generate 15 A of current in the given circuit  

Solution:

We know that,

• According to Ohm's law, under certain conditions

$\pink{\boxed{\bf{V=IR}}}$

where

V is voltage

I is current

R is resistance

$\rule{190}{1}$

On applying Ohm's law on given circuit, we get

$\longrightarrow\rm{V=IR}$

$\longrightarrow\rm{V=15\times3}$

$\longrightarrow\rm\green{V=45\:V}$

Hence, voltage of 45V would be necessary to generate 15 amperes of current in a circuit that has 3 ohms of resistance.

$\rule{190}{1}$

Additional Information-

Ohm's Law

It states that-

If there is no change in the physical state of a conductor, then the ratio of potential difference(voltage) across its end and the the current flowing through it is constant and it is equal to the resistance of conductor.