List of top Physics Questions on Power in Electric Circuits asked in Bihar Board XII

If \( n \) equal resistors are first connected in series and then in parallel, the ratio of maximum to minimum resistance will be:
To increase the sensitivity of a potentiometer:
Kirchhoff's second law of electricity is related to:
Two bulbs of 40 W and 60 W are connected to a 220 V source. The ratio of their resistances will be:
The resistance of a wire is 500 \(\Omega\). Its electrical conductivity will be: