In a circuit containing two unequal resistors connected in parallel:

Five bulbs are connected in a parallel circuit. If the second bulb blows out,what happens?

If resistors are connected in parallel,the voltage across each remains the same.

Five bulbs are connected in a series circuit. If the third bulb in the middle blows out,what happens?

Three incandescent bulbs of $100\, W$ each are connected in series in an electric circuit. In another circuit,another set of three bulbs of the same wattage are connected in parallel to the same source. Now,if one bulb in both the circuits gets fused,will the rest of the bulbs continue to glow in each circuit? Give reasons.

$A$ wire of resistance $10 \, \Omega$ is bent in the form of a closed circle. What is the effective resistance between the two points at the ends of any diameter of this circle?