In the arrangement of resistances shown below, the effective resistance between points $A$ and $B$ is ............... $\Omega$
  • A$20$
  • B$30$
  • C$90$
  • D$110$
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
    In the circuit shown below, The reading of the voltmeter $V$ is ...........
    View Solution
  • 2
    In the circuit shown below $E_1 = 4.0 \,V, R_1= 2 \Omega, E_2 = 6.0 \,V, R_2 = 4 \,\Omega$ and $R_3 = 2 \,\Omega$. The current $I_1$ is ..................... $A$
    View Solution
  • 3
    The specific resistance of a wire is $\rho $, its volume is $3\,{m^3}$ and its resistance is $3\, ohms$, then its length will be
    View Solution
  • 4
    A battery of $24$ cells, each of emf $1.5\, V$ and internal resistance $2\, \Omega$ is to be connected in order to send the maximum current through a $12 \,\Omega$ resistor. The correct arrangement of cells will be
    View Solution
  • 5
    Resistance of one carbon filament and one tungsten lamp are measured individually when the lamp are lit and compared with their respective resistances when cold. Which one of the following statements will be true
    View Solution
  • 6
    Find the equivalent resistance across $AB$ .............. $\Omega$
    View Solution
  • 7
    Temperature coefficient at $0\,^oC$ is $0.00125\,^oC^{-1}$. At a temperature of $25\,^oC$ its resistance is $1\,\Omega $. Find the temperature at which resistance is $1.2\,\Omega $
    View Solution
  • 8
    Following figure shows cross-sections through three long conductors of the same length and material, with square cross-section of edge lengths as shown. Conductor $B$ will fit snugly within conductor $A$, and conductor $C$ will fit snugly within conductor $B$. Relationship between their end to end resistance is
    View Solution
  • 9
    The sliding contact $C$ is at one fourth of the length of the potentiometer wire $( AB )$ from $A$ as shown in the circuit diagram. If the resistance of the wire $AB$ is $R _0$, then the potential drop $( V )$ across the resistor $R$ is
    View Solution
  • 10
    As the switch $S$ is closed in the circuit shown in figure, current passing through it is ................ $\mathrm{A}$
    View Solution