Question

Use Ohm's law to determine the potential difference across the 3 Ω resistor in the circuit shown in the following diagram when key is closed:

Answer 1

As V = IR

`I = V/R`

`I = 2/ (1 + 3 + 2)`

Hence, V (voltage across 3 Ω)

= `1/3 xx 3`

= 1 volt