Class 12th

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New answer posted

a year ago

0 Follower 3 Views

A
alok kumar singh

Contributor-Level 10

According to modified Ampere's law

? B . d I = μ 0 ( I C + I D )

For Loop  L 1 I C ≠ 0 and I D = 0

For Loop  L 2 I C = 0 and I D ≠ 0

Due to  KCLIC=ID

New answer posted

a year ago

0 Follower 2 Views

A
alok kumar singh

Contributor-Level 10

(Material)                      (Susceptibility ( χ  )

Diamagnetic                 (II) 0 > χ ≥ − 1

Ferromagnetic  (III) χ ? 1

Paramagnetic                (IV) 0 < χ < ε

Non-magnetic               (I) χ = 0

New answer posted

a year ago

0 Follower 11 Views

A
alok kumar singh

Contributor-Level 10

The magnitude of magnetic field due to circular coil of N  turns is given by

B C = μ 0 i N 2 R

= 4 π * 1 0 − 7 * 7 * 1 0 0 2 * 0 . 1

=4.4*10−3 T

=4.4mT

New answer posted

a year ago

0 Follower 6 Views

A
alok kumar singh

Contributor-Level 10

Divided into 10 parts

R = ρ l A

R ′ = ρ l 1 0 A = R 1 0

RS=5*R10 [series] 

R S = 5 0

R P = R 5 0 [  parallel  ]

R eq  = R S + R P

= 5 2 Ω

New answer posted

a year ago

0 Follower 15 Views

A
alok kumar singh

Contributor-Level 10

For uniformly charged spherical shell,

V = k q R (  For r≤R )

∴ V C = V P

VC−VP= Zero 

New answer posted

a year ago

0 Follower 6 Views

A
alok kumar singh

Contributor-Level 10

According to transformer ratio,

V S V P = N S N P = 2 : 1

New answer posted

a year ago

0 Follower 10 Views

A
alok kumar singh

Contributor-Level 10

Energy difference Δ E = h c λ

∴ λ ∝ 1 Δ E

( Δ E ) 6 − 2 > ( Δ E ) 5 − 2 > ( Δ E ) 4 − 2 > ( Δ E ) 3 − 2

λ 6 − 2 < λ 5 − 2 < λ 4 − 2 < λ 3 − 2
 

New answer posted

a year ago

0 Follower 28 Views

A
alok kumar singh

Contributor-Level 10

Y 1 = A · A ¯

= A ¯

Y 2 = B + B ¯

= B ¯

Y = Y 1 + Y 2 ¯

= A ¯ + B ¯ ¯

= A ¯ ¯ · B ¯ ¯

=A·B is similar to output of AND Gate 

New answer posted

a year ago

0 Follower 8 Views

A
alok kumar singh

Contributor-Level 10

(A) If c  is the velocity of light

so,   E = h ν   (Energy of photon)

(B) Velocity of photon is equal to velocity of light i.e. c.

(C)  λ = h p

p = h λ

p = h v c

(D) In photon-electron collision both total energy and total momentum are conserved.

New answer posted

a year ago

0 Follower 8 Views

A
alok kumar singh

Contributor-Level 10

At central point on screen, path difference is zero for all wavelength. So, central bright fringe is white and other fringes depend on wavelength as β = λ D d .

Therefore, other fringes will be coloured.

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