Embibe Experts Solutions for Exercise 9: Assignment

Two electric bulbs A and B rated $200 \mathrm{V}~100 \mathrm{W}$ and $200 \mathrm{V}~60 \mathrm{W}$ are connected in series to a $200 \mathrm{V}$ line. Then the potential drop across

The equivalent resistance between $A$ and $B$ in the situation shown is

In the situation shown, the currents through $3\mathrm{\Omega }$ and $2\mathrm{\Omega }$ resistances are in the ratio

In the situation shown, the potential difference across the cell of smaller $e.m.f.$ is

Figure shows mixed grouping of identical cells each of $e.m.f. 4V$  and internal resistance $1\mathrm{\Omega }.$ This combination can be replaced by an equivalent cell between $A$ and $B$ having e.m.f. $E$ and internal resistance $r,$ where

The situation shown in figure is equivalent to

The potential difference between $A$ and $B$ in the following situation is

Consider the circuit shown in figure. The current flowing in the branch $cd$ is $\frac{E}{Nr}$, value of $N$ is_______