Key is closed at time t-0- i-i1 at t-0 and i-i2 at time t- i1i2 equals

The correct option is D 12 [ According to queation........; At t=0 ( inductor ...

167

You visited us 167 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

EMF and EMF Devices

Key is closed...

Question

Key is closed at time $t = 0$ .
$i = i_{1}$ at $t = 0$ and $i = i_{2}$ at time $t = \infty$ .
$\frac{i_{1}}{i_{2}}$ equals

3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{1}{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{1}{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $\frac{1}{2}$
$\begin{matrix} A c c o r d i n g t o q u e a t i o n . . . . . . . . A t t = 0 (i n d u c t o r w i l l a c t a s o p e n c i r c u i t) a t t = \infty (i t w i l l a c t a s s h o r t c i r c u i t) a n d b y a p p l y i n g k i r c h o f^{'} s l a w i n d i f f e r e n t l o o p, s o, A t t = 0 i_{1} = \frac{V}{2 R} a n d a t t = \infty i_{2} = \frac{V}{R} s o t h e r a t i o w i l l b e : \frac{i_{1}}{i_{2}} = \frac{\frac{V}{2 R}}{\frac{V}{R}} = \frac{V}{2 R} \times \frac{R}{V} = \frac{1}{2} o r, 1 : 2 s o t h a t t h e c o r r e c t o p t i o n i s D . \end{matrix}$

Suggest Corrections

Similar questions

Q. In the circuit, switch

S

is closed at time

t = 0

, Let

I_{1}

and

I_{2}

be the currents at any finite time

t

, then the ratio of

\frac{I_{1}}{I_{2}}

Q. In the circuit shown, switch S is closed at

t = 0

. Let

i_{1}

and

i_{2}

be the current at any finite time t, then the ratio

i_{1} / i_{2}

In the circuit shown if switch S is closed at $t = 0$ , then $i_{1}$ and $i_{2}$ be the current at any finite time $t$ . The ratio $\frac{(i_{1})}{(i_{2})}$ is

Q. In the given circuit, let

i_{1}

be the current drawn from battery at time

t = 0

i.e. when switch is just closed and

i_{2}

be steady state current at

t = \infty

, then the ratio

\frac{i_{1}}{i_{2}}

In the circuit shown if switch S is closed at $t = 0$ , then $i_{1}$ and $i_{2}$ be the current at any finite time $t$ . The ratio $\frac{(i_{1})}{(i_{2})}$ is

Join BYJU'S Learning Program

Key is closed at time t=0.i=i1 at t=0 and i=i2 at time t=∞.i1i2 equals

The correct option is D 12Accordingtoqueation........Att=0(inductorwillactasopencircuit)att=∞(itwillactasshortcircuit)andbyapplyingkirchof′slawindifferentloop,so,Att=0i1=V2Randatt=∞i2=VRsotheratiowillbe:i1i2=V2RVR=V2R×RV=12or,1:2sothatthecorrectoptionisD.

Key is closed at time $t = 0$ .
$i = i_{1}$ at $t = 0$ and $i = i_{2}$ at time $t = \infty$ .
$\frac{i_{1}}{i_{2}}$ equals