The value of current through $20\,\Omega $ resistor is .................. $A$
  • A$1.2$
  • B$0.3$
  • C$0.6$
  • D$1.8$
Medium
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
    When current supplied by a cell to a circuit is $0.3 \,A$, its terminal potential difference is $0.9 \,V$. When the current supplied becomes $0.25 \,A$, its terminal potential difference becomes $1.0 \,V$. The internal resistance of the cell is ............ $\Omega$
    View Solution
  • 2
    The resistance of the series combination of two resistance is $S$. When they are joined in parallel the total resistance is $P$. If $S = nP$, then the minimum possible value of $n$ is
    View Solution
  • 3
    Current provided by a battery is maximum when
    View Solution
  • 4
    Two resistances ${R_1}$ and ${R_2}$ are joined as shown in the figure to two batteries of $e.m.f.$ ${E_1}$ and ${E_2}$. If ${E_2}$ is short-circuited, the current through ${R_1}$ is
    View Solution
  • 5
    Masses of three wires of copper are in the ratio of $1 : 3 : 5$ and their lengths are in the ratio of $5:3:1.$ The ratio of their electrical resistances are
    View Solution
  • 6
    Find the ratio of currents as measured by ammeter in two cases when the key is open and when the key is closed
    View Solution
  • 7
    The fact that the conductance of some metals rises to infinity at some temperature below a few Kelvin is called
    View Solution
  • 8
    All resistances in figure are $1\,\Omega$ each. The value of current ' $I$ ' is $\frac{a}{5}\,A$. The value of $a$ is
    View Solution
  • 9
    The resistance ofeach arm of the Wheatstone's bridge is $10\; ohm$. A resistance of $10 \;ohm$ is connected in series with a galvanometer then the equivalent resistance across the battery will be
    View Solution
  • 10
    An electric heater of resistance $6 \,ohm$ is run for $10$ minutes on a $120\, volt$ line. The energy liberated in this period of time is
    View Solution