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ओपन / कमेंट

2022-01-06 21:16:35

Monosaccharides contain -

(A) Always six carbon atoms (B) Always five carbon atoms (C) Always four carbon atoms (D) May contain 3 to 7 carbon atoms

Anonymous Quiz

29%

A

16%

B

10%

C

45%

D

289 voters591 views18:16

ओपन / कमेंट

2022-01-06 20:07:10

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ओपन / कमेंट

2022-01-06 19:17:41 Electric Dipole

The energy of electric dipole is given by U = – p.E.

The energy of a magnetic dipole is U = – μ .B C.

Electric Charge : Q = ± ne (e = 1.60218 × 10-29 C)

SI unit of Electric Charge is Coulomb (C)

Coulomb’s Law : Electrostatic Force (F) = k[q1q2/r2] and,
In Vector Form :
→F=k(q1q2)×→r/r3

Where, q1 and q2 = Charges on the Particle,
r = Separation between them,
→r = Position Vector,
k = Constant = 14πϵ0=8.98755×109Nm2C2

Electric Current :

The current at Time t : i=limΔt→0 ΔQ/Δt= dQ/dT
Where Δ Q and Δ T = Charges crosses an Area in time Δ T
SI unit of Current is Ampere (A) and 1A = 1 C/s

Average current density:
→j=Δi/Δs
j=limΔs→0 Δi/Δs=di/dS ,
j=Δi/ΔScosθ
Where, Δ S = Small Area,
Δ i = Current through the Area Δ S,
P = Perpendicular to the flow of Charges,
θ = Angle Between the normal to the Area and the direction of the current.

Kirchhoff’s Law:
Law of Conservation of Charge: I3 = I1 + I2

Resistance
Resistivity : ρ(T)=ρ(T0)[1+α(T−T0)]
R (T) =R (T0) [1+α (T−T0)]
Where, ρ (T) and ρ (T0) = Resistivity at Temperature T and T0 respectively,
α = Constant for given material.

Lorentz Force :
→F=q[→E+(→v×→B)]
Where, E = Electric Field,
B = Magnetic Field,
q = Charge of Particle,
v = Velocity of Particle.

Magnetic Flux:

Magnetic Flux through Area dS = ϕ=→B⋅d → S= B⋅dS Cos θ
Where, d→S = Perpendicular vector to the surface and has a magnitude equal to are Ds,
→B = Magnetic Field at an element,
θ = Angle Between →B and d→S,
SI unit of Magnetic Flux is Weber (Wb).

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ओपन / कमेंट

2021-12-30 20:50:01

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ओपन / कमेंट

2021-12-29 20:22:22

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ओपन / कमेंट

2021-12-28 19:51:30

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ओपन / कमेंट

2021-12-26 20:26:32

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ओपन / कमेंट

2021-12-25 21:47:58

Exploitation Of Bioresources Of A Nation By Multinational Companies Without Authorization From The Concerned Country Is Refered To As..
[ODISHA NEET 2019]

Anonymous Quiz

5%

Biowar..

23%

Bioweapon

65%

Biopiracy..

7%

Bioethics..

118 voters289 views18:47

ओपन / कमेंट

2021-12-25 21:28:43

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