Series or parallel?
Electricity and Magnetism
Level
1
Jane hosted a party in her house but, unfortunately, the fuse has blown. She has an ideal battery (with zero resistance) and two bulbs. To produce a greater brightness (greater total power by the bulbs), should she connect the bulbs in series or in parallel with the battery?
Note:
- The equivalent resistance \((R_{\text{net}})\) of two resistors \(R_1\) and \(R_2\) in series is \(R_1+R_2,\) and in parallel \(\frac{R_1R_2}{R_1+R_2}\).
- The power produced in a circuit is \(\frac{V^2}{R_{\text{net}}}\) or \(i^2 R_{\text{net}}\).
by
Rohit Gupta