Two resistors of $6\,\Omega $ and $9\,\Omega $ are connected in series to a $120\, volt$ source. The power consumed by the $6\,\Omega $ resistor is ........... $W$
Medium
Download our app for free and get startedPlay store
(a) Current through the combination $i = \frac{{120}}{{(6 + 9)}} = 8\,A$
So, power consumed by $6\,\Omega$ resistance
$P = {(8)^2} \times 6 = 384\,\,W$
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
    A coil takes $15\,\min$ to boil a certain amount of water, another coil takes $20\,\min$ for the same process. Time taken to boil the same amount of water when both coil are connected in series ........... $min$
    View Solution
  • 2
    An electric bulb rated as $200\, {W}$ at $100 \,{V}$ is used in a circuit having $200\, {V}$ supply. The resistance $'R'$ that must be put in series with the bulb so that the bulb delivers the same power is $.....\,\Omega$
    View Solution
  • 3
    In a potentiometer experiment the balancing with a cell is at length $240\, cm$. On shunting the cell with a resistance of $2$ $\Omega$, the balancing length becomes $120\, cm$. The internal resistance of the cell is ................. $\Omega $
    View Solution
  • 4
    Consider the ladder network shown in figure. What should be the value of resistance $R$, so that effective resistance between $A$ and $B$ becomes independent of number of elements in the combination is ............. $\Omega$
    View Solution
  • 5
    The circuit diagram shown consists of a large number of element (each element has two resistors $R_1$ and $R_2$). The resistance of the resistors in each subsequent element differs by $a$ factor of $K = 1/2$ from the resistance of the resistors in the previous elements. The equivalent reistance between $A$ and $B$ shown in figure is :
    View Solution
  • 6
    The capacitor shown in fig. is in steady state. The energy stored in the capacitor is
    View Solution
  • 7
    The voltage $V$ and current $I$ graph for a conductor at two different temperatures ${T_1}$ and ${T_2}$ are shown in the figure. The relation between ${T_1}$ and ${T_2}$ is
    View Solution
  • 8
    The $V-i$ graph for a conductor at temperature ${T_1}$ and ${T_2}$ are as shown in the figure. $({T_2} - {T_1})$ is proportional to
    View Solution
  • 9
    Five equal resistances are connected in a network as shown in figure. The net resistance between the points $A$ and $B$ is
    View Solution
  • 10
    In a wire of cross section radius $r,$ free electrons travel with drift velocity $v$ when a current $I$ flows through the wire. What is the current in another wire of half the radius and of the same material when the drift velocity is $2v$  ?
    View Solution