Find the equivalent resistance between the points $a$ and $b$ .......... $\Omega$
  • A$2$
  • B$4$
  • C$8$
  • D$16$
Easy
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
    An electric current flows along an insulated strip $PQ$ of a metallic conductor. The current density in the strip varies as shown in graph of figure. Which one of the following statements could explain this variation ?
     
    View Solution
  • 2
    To verify Ohm's law, a student connects the voltmeter across the battery as, shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained If $V_0$ is almost zero, identify the correct statement
    View Solution
  • 3
    The two ends of a uniform conductor are joined to a cell of $e.m.f.$ $E$ and some internal resistance. Starting from the midpoint $P$ of the conductor, we move in the direction of current and return to $P$. The potential $V$ at every point on the path is plotted against the distance covered $(x)$. Which of the following graphs best represents the resulting curve
    View Solution
  • 4
    A capacitor is connected to a cell of $emf$ $E$ having some internal resistance $r$. The potential difference across the
    View Solution
  • 5
    A battery of internal resistance one ohm and $emf$ $3\,volt$ sends a current through $1\,metre$ of uniform wire of resistance $5\,\Omega $. The pole of the cell of $emf$ $1.4\,volt$ are connected to two points on the wire so that no current passes through this cell. Then, the potential gradient of the wire is
    View Solution
  • 6
    After switch is closed, current drawn from the battery is (in $A$)
    View Solution
  • 7
    The amount of heat produced in a resistor when a current is passed through it can be found using
    View Solution
  • 8
    A $25\, watt$, $220\, volt$ bulb and a $100\, watt$, $220\, volt$ bulb are connected in series across a $220\, volt$ lines. Which electric bulb will glow more brightly
    View Solution
  • 9
    The voltage of clouds is $4 \times 10^6\,volt$ with respect to round. In a lighteing strike lasting $100\,m\,sec$, a charge of $4\,coulombs$ is delivered to the ground. The power of lightening strike is
    View Solution
  • 10
    The internal resistance of a cell depends on
    View Solution