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We know magnet is placed along the axis of the circular coil, hence axis of the magnet is parallel to the axis of the circular coil.1) When magnet is rotated about its own axis then there will be very negligiblechange in the flux linked with the coil. Hence EMF induced is less.

2) IN the second case as magnet is rotated in perpendicular direction then flux linked with the coil decreases then become zero and then again increases and reached to the maximum value.Hence emf induced is more in this case.option 3

Bacteria have cell wall. Antibiotics block the formation of cell wall in bacteria which make them weak. therefore, bacteria die. Virus don't have cell walls. That's why antibiotics are not effective against them.

Inelectronics,impedance matchingis the practice of designing theinput impedanceof anelectrical loador theoutput impedanceof its corresponding signal source tomaximize the power transferor minimizesignal reflectionfrom the load.

In the case of a complex source impedanceZSand load impedanceZL, maximum power transfer is obtained whenzs= zl

where the asterisk indicates thecomplex conjugateof the variable. WhereZSrepresents thecharacteristic impedanceof atransmission line, minimum reflection is obtained when

lion fish

Given A = 3i+2j and B = i-2j+3k

so, A+B = 4i+3k

and A-B = 2i+4j-3k

√12 = 2√3

i) Resultant R = 7+(10*5)/(10+5) = 7+50/15 = 7+10/3 = 31/3 Ω

ii) Total current = 6v/(31/3) = 18/31Ω

iii) V across 7Ω = i*r = 7*18/31 = 126/31 V

drop on 50 ohm resistance=2.5*50/500=0.25 vdrop across cd=2.5+0.25=2.75vdrop across 550 ohm=12v-2.75v=9.25 vi=9.25/550=0.0168 Ai2=2.5/500=0.005Ai1=0.0168-0.005=0.0118AR=2.75/0.0118=233 ohm

i) Resultant R = 7+(10*5)/(10+5) = 7+50/15 = 7+10/3 = 31/3 Ω

ii) Total current = 6v/(31/3) = 18/31Ω

iii) V across 7Ω = i*r = 7*18/31 = 126/31 V

20 is answer to question

20 volts is the correct answer of the given question

Cᴜʀʀᴇɴᴛ => 5 ᴀᴍᴘᴇʀᴇꜱRᴇꜱɪꜱᴛᴀɴᴄᴇ => 2 ᴏʜᴍꜱ Pᴏᴡᴇʀ => (5)² × 2

=25 × 2=30 ᴡᴀᴛᴛꜱ=50 / 1000 ᴋW= 0.05 ᴋᴡTɪᴍᴇ=> 30 ᴍɪɴ=30 / 60=½ ʜʀꜱ= 0.5 ʜʀꜱEɴᴇʀɢʏ = P × ᴛ= 0.05 × 0.5=0.025 Kᴡʜ

The SI base units and their physical quantities are themetreformeasurementoflength, thekilogramformass, thesecondfor time, theamperefor electric current, thekelvinfortemperature, thecandelaforluminous intensity, and themolefor amount of substance.

We know that force = mass*acceleration = mass*V/t

SO, F = m*(V)/t

=> m = F-t/V = Ft/V

The fundamental units defined by the International System of Units. They are not dependent upon any other units, and all other units are derived from them. Example: meter, kilogram

A derived unit is anSIunit of measurement made of a combination of theseven base units. Example: Newton which is m×kg/sec².

can u explain more about this

fundamental units are something that is taken as convection. But derived units are a combination of fundamental units. see above-given examples, how newton is derived.

Series

nR = 2×20 =40ohm

parallel

R/2 = 20/2 = 10ohm

Ratio = 40/10 = 4:1

wrong

(Va + Vp2)/2 = Vp1 ( that is 0)

=> Va = -Vp2 = -10m/s ↑

now (Vb + Vc)/2 = Vp2=> Vb = 2(Vp2) - Vc = 2*(10) -2 = 18 m/s ↑

arrangement 1: when all connected in parallel..

arrangement 2: when all connected in series...

arrangement 3:: when 2 connected in series...in parallel with 3rdone...

arrangement :4 when 2 connected in parallel..in series with 3rdone.

thanks

(x + 3)/(x-3) + 6(x-3)/(x+3) = 5

Let (x+3)/(x-3) = y

y + 6/y = 5

y^2 + 6 = 5y

y^2 - 5y + 6 = 0

y^2 - 3y - 2y + 6 = 0

y(y - 3) - 2(y - 3) = 0

(y - 2)(y - 3) = 0

y = 2, 3

For y = 2x + 3/x - 3 = 2x + 3 = 2x - 6x = 9

For y = 3x + 3/x - 3 = 3x + 3 = 3x - 92x = 12x = 12/2 = 6

work done =change in kinetic energy This is the work energy theorm.

The relationship between Final KE abetween work done on a body and its kinetic energy is very nicely captured byWork-Kinetic Energy Theorem.

This theorem essentially says that if a force is exerted on a body, the force does work on the body (often described as a dot product of Force and displacement). Then this work done is equal to the difference and initial KE. Or Work Done by a Force, W = KE (final) - KE (initial).

thanku so much

according to law of conservation of momentum

Force = momentum /timeMomentum = 30 Ns, time =.5 s

Force = 30/.5 = 300/5 = 60 N

Correct option is (1)

The answer is Option 2.

Assume ABCD to be the glass plate with sides AB parallel to CD.

Let the refractive index of air and glass be n1and n2.

Consider a ray of light EF incident on surface AB of the glass slab with angle of incidence,∠i.The light ray is refracted into the glass slab along the path FG and towards the normal, NN’ .∠r1is the angle of refraction.The light ray is refracted out of the glass slab at the surface CD along the path GH. The angle of incidence at this surface is∠r2.

The light ray emerges out of the slab forming∠e as angle of emergence.

The surfaces AB and CD are parallel and FG is the transversal,Therefore,∠r​1=∠r1

Applying Snell’s Law at the surface AB,sinisinr1=n2n1.......(1)Similarly, at surface CD, according to Snell’s Lawsinr2sine=n1n2.......(2)Multiplying equation 1 and 2,

sinisinr1×sinr2sine=n2n1×n1n2sinisinr1×sinr2sine=1

As AB is parallel to CD, the perpendiculars to the AB and CD, NN’ and MM’ are also parallelTherefore, alternate interior angles, r1and r2are congruent i.e.r1=r2Hence,sinisinr1×sinr1sine=1sinisine=1Therefore,sini=sineor,i=e

Hence, angle of incidence equals angle of emergence.

Let ABCD is the glass slabAssume that the air Index and glass index = n₁ and n₂From the diagram ,Consider a light ray WX makes the∠i on the surface AB.Reflected light XY to the Normal NN' makes the angle ∠r₁Refracted light YZ outside the slab CD makes the angle∠₂Here we observe that AB and CD are parallel and XY is transversel.

Applying snell law on first surface (AB) & CD we get simultaneously

-----→(a)

----→(b)

On multiplying eq. (a) & (b) , we get

orHence,sin i = sin e

∴

there are to option correct

and unable to understand

distance travelled by the body in 2 seconds is,s=ut+12gt2 =u×2+12×g×2×2 =2u+2g

(i)Distance travelled by the body in next second is,s=u+g22n-1 =u+g22×3-1 =u+5g2

(ii)Since, the body covers equal distance,

so from equation (i) and (ii),

2u+2g=u+5g2

or, u=g2

Now putting the value of u in equation (i), we get,

s=2u+2g

=2×g2+2g

=3g=3×10=30 m . option a is correct answer --- I hope it helps u

1) is the correct answer

(1) 2f1+f2 is the answer

D) is the correct answer

a) is the correct answer

Option A 11 amp

RP=2sinA/1.22xwavelengthRP=2*√3/2/1.22*400*10^-10RP=√3/488*10^-10RP=√3*10^10/488RP=1.732*10^10/488RP=1732*10^7/488RP=3.54*10^7

wrong answer

Water doesn't come out because the water cannot be replaced by air when the water is squeezed out. This is because the water would spill out, but air pressure is in the way If the hole at the end of the dropper was bigger, then the water could spill out. That is why the water spills out when you pour a drink for yourself. The water spills out , and at the same time air is spilling into the bottle.

no wrong....the actual answer is because of same atmospheric pressure and water pressure inside the dropper

There are 2 components of acceleration.

Towards center: V2/R = 40 x 40 /400 = 4 m/s2

Tangent( orthogonal to center) = 3 m/s2

Resultant of 1 and 2 above = 5 m/s2

can u explain clearly??i don't understand

As the car is moving along a circular path, it will experience two types of accelerations:1) Tangential accelerationThis is the acceleration that occurs in a straight line, whose value is given to us as 3 m/s22) Centripetal accelerationThis is what causes objects moving in a circular path to be flung outwards. Its value can be calculated from the formula A= v2/r, where v is linear velocity and r is the radius of the path. Putting all values into the formula, we get the value of centripetal acceleration as 4m/s2.Always, tangential or linear acceleration is along a tangent to the path, while centripetal acceleration along the radius vector of the path. So they always lie perpendicular to each other. The net acceleration is given by sqrt(A2+a2), where A and a are linear and centripetal acceleration respectively.Hence we get the value of acceleration as 5 m/s2.

The centripetal acceleration is = v²/r = 30*30/500 = 9/5 m/s² = 1.8 m/s²

and the tangential acceleration is = 2m/s²

so net acceleration = √(2)²+(1.8)² =√7.24 = 2.7 m/s²

thanks

Anatural resourceis anything that people can use which comes from thenaturalenvironment.Examplesofnatural resourcesare air, water, wood, oil, wind energy, iron,andcoal.

The resources which we obtain from nature are called natural resource. Ex. Water, sun light, wind, etc