The total resistance in the circuit, R is 4 Ω .
The meters connected to the 12 Ω resistance are:
- Voltmeter - connected in parallel
- Ammeter - connected in series
If the switch is opened, only the 4 Ω and 2 Ω resistances will stop working.
<h3>What is the equivalent or total resistance in the circuit?</h3>
The resistances in the circuit are connected both in series and in parallel
The resistances in series are the 4 Ω and the 2 Ω resistances.
Equivalent resistance = 4 + 2 = 6 Ω
The 4 Ω and the 2 Ω resistances are then connected in parallel with the 12 Ω resistance.
Total resistance, R is calculated as follows:
1/R = 1/12 + 1/6
1/R = 3/12
R = 12/3
R = 4Ω
The meters connected to the 12 Ω resistance are:
- Voltmeter - connected in parallel
- Ammeter - connected in series
If the switch is opened, only the 4 Ω and 2 Ω resistances will stop working because the circuit connecting them to the cell is broken whereas the circuit to the 12 Ω resistance is continuous.
In conclusion, resistances can be connected in parallel or in series.
Learn more about resistance in series and in parallel at: brainly.com/question/2980867
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