The unit of absolute permittivity of a medium is

1 Answer

Answer :

Farad/ metre

Related questions

Description : Which parameter is unity in air medium? a) Permittivity b) Absolute permeability c) Relative permeability d) Permeability

Last Answer : c) Relative permeability

Description : Tick the wrong statement. a) Velocity of light is independent of the motion of the observer. b) Velocity of light in free space is the same in all directions. c) Velocity of light in free space is different in different directions. d) Absolute motion or absolute rest is meaningless to talk about

Last Answer : c) Velocity of light in free space is different in different directions

Description : The potential difference set up across the depletion region is called (a) Absolute potential (b) neutral potential (c) reverse potential (d) potential barrier

Last Answer : (d) potential barrier

Description : The temperature at which material show super conductivity is a) Super temperature b) Critical temperature c)Kelvin temperature d)Absolute

Last Answer : d)Absolute

Description : The resistance of a conductor at absolute zero (OK) is a. zero almost b. infinite almost c. May increase or decrease d. None

Last Answer : zero almost

Description : In metals, the total permittivity is a) Absolute permittivity b) Relative permittivity c) Product of absolute and relative permittivity d) Unity

Last Answer : a) Absolute permittivity

Description : In free space, which parameter will be unity? a) Permittivity b) Absolute permittivity c) Relative permittivity d) Permeability

Last Answer : c) Relative permittivity

Description : Electromagneticwaves are refractedwhen they a. pass into a medium of different dielectric constant b. are polarized at right angles to the direction of propagation c. encounter a perfectly conducting plane d. pass through a small slot in a conducting plane

Last Answer : a. pass into a medium of different dielectric constant

Description : .In electromagneticwaves,polarization a. is caused by reflection b.isdue to the transversenature ofthewaves c. results from the longitudinal nature of the waves d. is always vertical in an isotropic medium

Last Answer : b.isdue to the transversenature ofthewaves

Description : Which one of the following waves requires a material medium for their propagation? a) Light waves b) X– rays c) -rays d) Sound waves

Last Answer : d) Sound waves

Description : The electric force between two charges placed in air is 2 Newton. When placed in a medium of ∈r = 80, the force reduced to: (a) 0.029 N (b) 0.025 N (c) 0.03 N (d) 0.04 N

Last Answer : (b) 0.025 N

Description : The force in a medium of relative permitivity ∈r is given by: (a) F′ =F (b) F′ =∈r ∈ F r (c) F′ = ∈r . F (d) F′ =F ∈ ∈

Last Answer : (a) F′ =F

Description : When the medium is insulator the electrostatic force between the charges is: (a) Decreased (b) Zero (c) Increased (d) None of above

Last Answer : (a) Decreased

Description : Find the relative permittivity of the medium having a refractive index of 1.6 a) 0.4 b) 2.56 c) 3.2 d) 4.8

Last Answer : b) 2.56

Description : The refractive index of a medium with permittivity of 2 and permeability of 3 is given by a) 3.56 b) 2.45 c) 3.21 d) 1.78

Last Answer : b) 2.45

Description : Find the Brewster angle of a wave transmitted from a medium of permittivity 4 to a medium of permittivity 2. a) 35.26 b) 53.62 c) 26.35 d) 62.53

Last Answer : a) 35.26

Description : Zero permeability/permittivity implies which state? a) No ions are allowed in the medium b) No current is generated in the medium c) No magnetic or electric energy is permitted in the medium d) No resistivity

Last Answer : c) No magnetic or electric energy is permitted in the medium

Description : The unit of relative permeability is (a) henry/metre (b) henry (c) henry/sq. m (d) it is dimensionless

Last Answer : (d) it is dimensionless

Description : Tesla is a unit of (a) field strength (b) inductance (c) flux density (d) flux

Last Answer : (c) flux density

Description : The unit of electric intensity is

Last Answer : Volt/ metre

Description : What is the unit for capacitance ?

Last Answer : Farad

Description : The S.I. unit of Rydberg’s constant is a) m-2 b) m-1 c) cm-1 d) cm-2

Last Answer : b) m-1

Description : The SI unit of Planck’s constant is a) Joule – Sec-1 b) Joule – Sec-2 c) Joule – Sec d) Joule – Sec2

Last Answer : c) Joule – Sec

Description : SI unit of gain of amplifier is (a) Volt (b) ampere (c) coulomb (d) dimensionless

Last Answer : (d) dimensionless

Description : The S.I Unit of Modulus elasticity is: a) Pascal b) Coulomb c) Ampere d) None

Last Answer : a) Pascal

Description : S.I unit of strain is a) Newton b) N m–2 c) Pascal d) no unit

Last Answer : a) Newton

Description : S.I unit of stress is: a) N/m b) N m c) Nm–2 d) Newton

Last Answer : c) Nm–2

Description : The unit Nm–2 is also called a) Coulomb b) Newton c) Pascal d) Ampere

Last Answer : c) Pascal

Description : A smallest three dimensional part of a crystal lattice is called. a) A particle b) A molecules c) A unit cell d) An atom

Last Answer : c) A unit cell

Description : The Si unit of mutual inductance and self inductance is: a.same b. different c. no unit d. a & b

Last Answer : b. different

Description : Energy stored per unit volume inside the solenoid is called: a. Energy density b. Charge Density c. Mass density d. Volume charge density

Last Answer : energy density is correct

Description : The unit of inductance is: a. Volt b. Ampere c. Henry d. Ohm

Last Answer : c. Henry

Description : The self-inductance of a long solenoid with a turns per unit length is: a. L = μ nA/ l b. L = μ n2 A/ l c. L = μ n2 A l d. L = μ n l/ A

Last Answer : d. L = μ n l/ A

Description : Which of the following does not equal the unit of magnetic flux density? a) 1 Wbm-2 b) 1 NA-1m -1 c) Both (a) and (b) d) 1 Wbm-1

Last Answer : d) 1 Wbm-1

Description : SI unit of resistivity is a. ohm b. Ohm×m c. Ohm×m-1 d. Ohm×m2

Last Answer : c. Ohm×m-1

Description : The force per unit charge is called: (a) Electric field (b) Electric field intensity (c) Electric potential energy (d) Electric potential

Last Answer : b) Electric field intensity

Description : The SI unit of charge is: (a) Meter (b) Ampere (c) Coulomb (d) Volt

Last Answer : (c) Coulomb

Description : The SI unit of charge is: (a) Coulomb (b) Calorie (c) Ampere (d) Joule

Last Answer : a) Coulomb

Description : Debye is the unit used to measure a) Permittivity b) Electric dipole moment c) Magnetic dipole moment d) Susceptibility

Last Answer : b) Electric dipole moment

Description : Coulomb is the unit of which quantity? a) Field strength b) Charge c) Permittivity d) Force

Last Answer : b) Charge

Description : Gilbert is a unit of (a) electromotive force (6) magnetomotive force (c) conductance (d) permittivity

Last Answer : (6) magnetomotive force

Description : The permeability of a dielectric material in air medium will be a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity

Last Answer : a) Absolute permeability

Description : Please ripley me due to emergency

Last Answer : To calculate the flux density in the ring, you need to use the following formula: B = (μ * I * N) / (2 * π * r) where: B is the flux density in the ring (in teslas) μ is the relative permeability ... 2 * π * 0.127 m) = 0.53 T So the flux density in the ring would be approximately 0.53 teslas.

Description : Can you help me solve my electrical mystery?

Last Answer : Any signs of animal life? They can get in the walls and chew on the wires. Or is it the entire area served by that breaker? The breaker could be bad. It happens with anything mechanical.

Description : How to tell if a power strip is burned out?

Last Answer : answer:Personally, I would either toss it, or down grade it to outdoor use only. I wouldn’t take a chance with it in the house. Yes, you can let it cool down, then test it again. But a failure is a failure. Does it have a reset button? What price range did you pay?

Description : I accidently soaked an extension cord. Is it safe to use it again after letting it dry out for awhile?

Last Answer : The plug end is easier to dry out than the socket end get out your blow-dryer and set it to high and blow the end that got wet for a while. That will get most of the water off/out of ... up or sputter. Most modern extension cords are pretty watertight so there shouldn't be any water down the wire.

Description : How can a solar array power source be bypassed when the batteries run low?

Last Answer : Ah got it. If anyone else is interested, you need an “automatic transfer switch” – or get a manual one for that mad scientist charm.

Description : How to stop a signal going through a wire?

Last Answer : Use a switch or a variable resistor

Description : Air conditioning will not turn on, is it electrical?

Last Answer : Pull the Thermostat off the wall and see if it is connected correctly to the AC switch. There should be no dangling wires, and the post labeled for the AC should have an attached wire.

Description : What is the speaker driving voltage of an amplifier?

Last Answer : I have to ask WHY? That said, Speakers and a light bulb are two different types of load, and the the lights will probably fry the output transistor.