Considering the following circuit, select the correct alternative
Medium
Download our app for free and get startedPlay store
Current won't pass through

$4\, \Omega $ and $ 6\, \Omega$

so $\mathrm{P}=\frac{(30)^{2}}{3}=300 \mathrm{\,W}$

$I=\frac{30}{3}=10 \mathrm{\,A}$

art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    The $n$ rows each containing $m$ cells in series are joined in parallel. Maximum current is taken from this combination across an external resistance of $3 \,\Omega$ resistance. If the total number of cells used are $24$ and internal resistance of each cell is $0.5 \,\Omega$ then
    View Solution
  • 2
    Figure shows three similar lamps $L_1, L_2$ and $L_3$ connected across a power supply. If the lamp $L_3$ fuses, how will the light emitted by $L_1$ and $L_2$ change ?
    View Solution
  • 3
    The current $i_1$ and $i_2$ through the resistor $R_1 (= 10\,\Omega )$ and $R_2 (=30 \,\Omega )$ in the circuit diagram with $E_1 = 3\,V, E_2 = 3\,V$ and $E_3 = 2\,V$ are respectively:
    View Solution
  • 4
    In the circuit shown the readings of ammeter and voltmeter are $4\,\, A$ and $20\,\, V$ respectively. The meters are non ideal, then $R$ is
    View Solution
  • 5
    Find the charge on the capacitor $C$ in the given circuit .................. $\mu C$
    View Solution
  • 6
    A wire of length ' $r$ ' and resistance $100 \Omega$ is divided into $10$ equal parts. The first $5$ parts are connected in series while the next $5$ parts are connected in parallel. The two combinations are again connected in series. The resistance of this final combination is:
    View Solution
  • 7
    A current of $2\,A$ flows through a wire of crosssectional area $25.0\,mm ^2$. The number of free electrons in a cubic meter are $2.0 \times 10^{28}$. The drift velocity of the electrons is $...............\times 10^{-6}\,ms ^{-1}$ (given, charge on electron $=1.6 \times 10^{-19}\,C$ )
    View Solution
  • 8
    Two electric bulbs whose resistances are in the ratio of $1 : 2$ are connected in series. The powers dissipated in them have the ratio
    View Solution
  • 9
    A wire has a resistance of $12\, ohm$. It is bent in the form of equilateral triangle. The effective resistance between any two corners of the triangle is
    View Solution
  • 10
    Electromotive force is the force, which is able to maintain a constant
    View Solution