Question

A 3.5 V battery is connected to a wire with a resistance of 2.5 Ohms. Use Ohm's law to calculate the current for this wire

Answer 1

1.4 should be the answer

Answer 2

Answer:

1.4A

Explanation:

Ohm's law states the the current flowing through a metallic conductor is directly proportional to the potential difference applied across it provided that the temperature and other necessary physical conditions remain constant.

This law is mathematically rendered as follows;

$V=IR.................(1)$

where V is the potential difference, I is the current and R is the resistance of the conductor.

The current I could be determined by making it the subject of formula provided other parameters are known.

$I=\frac{V}{R}.....................(2)$

Given;

V = 3.5V

R = 3.5Ohms.

We then substitute these into equation(2) to obtain I.

$I=\frac{3.5}{2.5}\\I=1.4A$