MCQ
Find the equivalent resistance across $AB$
  • $1 \Omega$
  • B
    $2 \Omega$
  • C
    $3 \Omega$
  • D
    $4 \Omega$

Answer

Correct option: A.
$1 \Omega$
$1 \Omega$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In forward bias, the width of potential barrier in a P-N junction diode(a) Increases(b) Decreases(c) Remains constant(d) First increases then decreases
   
   
Photoelectric emission is observed from a metallic surface for frequencies $\mathrm{v}_1$ and $\mathrm{v}_2$ of the incident light rays $(\left.\mathrm{v}_1>\mathrm{v}_2\right).$ It the maximum values of kinetic energy of the photoelectrons emitted in the two cases are in the ratio of $1: \mathrm{k},$ then the threshold frequency of the metallic surface is
At a certain distance from a point charge the electric field is 500 V/m  and the potential is 3000 V. What is this distance(a) 6 m(b) 12 m(c) 36 m  (d) 144 m
       
A conductor has $14.4 \times 10^{-19}$ coulombs positive charge. The conductor has $($Charge on electron $=1.6 \times 10^{-19}$ coulombs$)$
A metallic surface with work function of 2 eV, on heating to a temperature of 800 K gives an emission current of 1 mA. If another metallic surface having the same surface area, same emission constant but work function 4 eV is heated to a temperature of 1600 K, then the emission current will be(a) 1 mA(b) 2 mA(c) 4 mA(d) None of these
       
Direction of magnetic field at any point due to a long current carrying conductor is:
The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of 20 V, 50 Hz. The secondary will have an output of(a) 200 V, 50 Hz(b) 2 V, 50 Hz(c) 200 V, 500 Hz(d) 2 V, 5 Hz
       
The kinetic energy of the electron in an orbit of radius $r$ in hydrogen atom is $(e =$ electronic charge$)$
. The electric potential inside a conducting sphere _____________?
If $\mu_0$is absolute permeability of vacuum and $\mu\text{r}$ is relative magnetic permeability of another medium, then permeability $\mu$ of the medium is: