Combination of Resistances
### Series Combination
$$R=R_1+R_2+R_3$$
### Parallel Combination
$$\frac1R=\frac1{R_1}+\frac1{R_2}+\frac1{R_3}$$
### Usage
- Used to calculate equivalent resistance.
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CAT Formulas
Practical Physics
Combination of Resistances
Combination of Resistances
### Series Combination
$$R=R_1+R_2+R_3$$
### Parallel Combination
$$\frac1R=\frac1{R_1}+\frac1{R_2}+\frac1{R_3}$$
### Usage
- Used to calculate equivalent resistance.
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