Consider an electrical circuit containing a two way switch ^ S ^ … - Vidyadip

MCQ

Consider an electrical circuit containing a two way switch $^{\prime}{S}^{\prime}$. Initially ${S}$ is open and then ${T}_{1}$ is connected to ${T}_{2} .$ As the current in ${R}=6 \,\Omega$ attains a maximum value of steady state level, ${T}_{1}$ is disconnected from ${T}_{2}$ and immediately connected to ${T}_{3} .$ Potential drop across ${r}=3\, \Omega$ resistor immediately after $T_{1}$ is connected to $T_{3}$ is $....\,V.$ (Round off to the Nearest Integer)

A
$2$
✓
$3$
C
$5$
D
$7$

✓

Answer

Correct option: B.

$3$

b
When $T _{1}$ and $T _{2}$ are connected, then the steady state current in the inductor $I=\frac{6}{6}=1 A$

When $T _{1}$ and $T _{3}$ are connected then current through inductor remains same. So potential difference across $3 \Omega$

$V = Ir =1 \times 3=3 \text { volt }$

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

Explore more

More "M.C.Q (1 Marks)" from 3. current electricity→3. current electricity — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A wire in the form of a square of side ‘$a$’ carries a current $i$. Then the magnetic induction at the centre of the square wire is (Magnetic permeability of free space =${\mu _o}$)

What is the path difference of destructive interference

The focal length of a converging lens are $f_v$ and $f_r$ for violet and red light respectively:

The minimum wavelength of $X$-rays produced by an electron accelerated through a potential difference of $V_{\text {volts }}$ is proportional to :

A ray of light makes normal incidence on the diagonal face of a right angled prism as shown in figure. If $\theta = 37^o$ , then the angle of deviation is......$^o$ $(sin37^o = 3/5)$

The velocity of certain ions that pass undeflected through crossed electric field $E = 7.7\,k\,V /m$ and magnetic field $B = 0.14\,T$ is.....$km/s$

Which is the wrong statement in following sentences? A device in which P and N-type semiconductors are used is more useful then a vacuum type because

The area of the coil must be.$.......$

Speed of light is maximum in

The ratio of secondary to the primary turns in a transformer is $3 : 2$. If the power output be $P$, then the input power neglecting all loses must be equal to