Consider the following two circuits
[A] 20 bulbs are connected in series to a power supply line.
[B] 20 bulbs identical to [A] are connected in a parallel circuit to an identical power supply line.
Identify which of the following is not true? 

Options

A. If one bulb in [A] blows out, all others will stop glowing
B. Bulbs in [A] glow brighter, since the current flowing in [A] is higher
C. If one bulb in [B] blows, other bulbs will still glow
D. Bulbs in [B] have the highest voltage across each bulb

Answer

B

Explanation

Statement B is not true because `R_("eff")=20" R"` (Let's assume R is resistance of one bulb)
So, `i=(V)/(R_("eff"))=(V)/(20R)` which will be minimum.