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Capacitance is the ability of a system of electrical conductors and insulators to store electric charge when a potential difference exists between the conductors. The symbol for capacitance is C. Capacitance is expressed as a ratio of the electrical charge stored to the voltage across the conductors.

The SI unit of capacitance is the farad (symbol: F)

mass no= no nucleons in an atom . mass no of Ge is 72.61. Hence no of nucleons are (1)73.

(1) 73is a write answer

Myopia

Near-sightedness : A person with Myopia can see nearby objects clearlyA person with myopia cannot see faraway objects clearly.

Occurs due to1.Excessive curvature of the eye lens

2.Elongation of eyeball

3.The image of a distance object is formed in front of the retina and not on the retina

Defected is corrected by using Concave lenses such that the lens will bring the image back on to the retina.

oral rehydration solutions

taking u/4π = 10^(-7) , r=3cm i=10A α=3π/2,B=(10^(-7)*3*3.14*10)/(3*2)=1.57uT

The conductor ‘b’ will experience a sideways force on account of the external field Ba. The direction of this force is towards the conductor ‘a’. you can verify this either by the cross product rule of vectors or by Fleming’s left hand rule. We label this force Fba, the force on a segment L of ‘b’ due to ‘a’. The magnitude of this force is given by,

Fba= iaIBa

FbaL

=

μ0iaib/2πd

1is to 1ratio between initial charges on the sphere

Since the two charges (spheres) attract, they will be opposite in sign, ie, q1 and –q2.Force, F= k * q1 * q2/ d2After touching, charge on each will be (q1 - q2)/2.New force, F=k*[(q1 - q2)/2]2/ d2.Since both the force are same(given in question)So, on solving by quadratic equations, we getq1/ q2 = -(3 + √(8)) or (-3 + √(8))

thanks for answer

Monocots :-

1. The seeds of these plants have only one cotyledon.

2. Their leaves have parallel venation.

3. The root system consists of similar fibrous roots.

4. The flowers are trimerous, have three or multiple of three petals.

5. The vascular bundles are scattered and closed (lack canbium). Secondary growth does not occur.

Examples - Maize, wheat,rice,onion

Dicots :

1. The seeds produced by these plants have embryos with two fleshy leaves, the cotyledons.

2. Their leaves have reticulate venation, with a network of veins.

3. The root system has a prominent tap root.

4. The flowers have five or multiple of five petals.

5. The vascular bundles are arranged in a ring. They are open (I.e., have cambium) and undergo secondary growth.

Examples - Pea, potato, sunflower, rose, banyan.

you can write any two with examples from above the following

Monocots :-

1. The seeds of these plants have only one cotyledon.

2. Their leaves have parallel venation.

3. The root system consists of similar fibrous roots.

4. The flowers are trimerous, have three or multiple of three petals.

5. The vascular bundles are scattered and closed (lack canbium). Secondary growth does not occur.

Examples - Maize, wheat,rice,onion

Dicots :

1. The seeds produced by these plants have embryos with two fleshy leaves, the cotyledons.

2. Their leaves have reticulate venation, with a network of veins.

3. The root system has a prominent tap root.

4. The flowers have five or multiple of five petals.

5. The vascular bundles are arranged in a ring. They are open (I.e., have cambium) and undergo secondary growth.

Examples - Pea, potato, sunflower, rose, banyan.

you can wriye any two with examples from above the following

The plants whose seeds have one cotyledon are called monocots.They are also called monpcotyledonous plants.

The plants whose seeds have one or more c otyledons are called doctorsThey are called dicotylefonous plants.

Current sensitivity does not depend upon resistance(R), whereas voltage sensitivity does. Current sensitivity can be increased by increasing the number of turns of the coil. However, this increases the resistance of the coil also(R is proportional to length of conductor). Since voltage sensitivity decreases with increase in resistance of the coil, the effect of increase in number of turns is nullified in the case of voltage sensitivity. Hence, there is no increase in voltage sensitivity.

Current Sensitivity Means The Number Of Deflections Produced by the Gavenometer When a Unit Current Passes Through it.

current sensitivity = (angle of deflection)/current

so it depends on angle of deflection as well as on the current passing through it.

Photovoltaic solar panelsabsorbsunlightas a source of energy to generateelectricity. Aphotovoltaic(PV) module is a packaged, connected assembly of typically 6x10 photovoltaicsolar cells. Photovoltaic modules constitute the photovoltaic array of aphotovoltaic systemthat generates and suppliessolar electricityin commercial and residential applications.

Photovoltaic solar panelsabsorbsunlightas a source of energy to generateelectricity. Aphotovoltaic(PV) module is a packaged, connected assembly of typically 6x10 photovoltaicsolar cells. Photovoltaic modules constitute the photovoltaic array of aphotovoltaic systemthat generates and suppliessolar electricityin commercial and residential applications.

Ans :- A solar cell is also known as photovoltaic cell. The chief component of a solar cell is its own module. It is constructed of several different layers. They are made up of a material called silicon which acts as a semi conductor. But what is a semi conductor? Semi means partial and conductor means that which carries an electric current.

There are 2 layers of silicon in a solar cell that is N-type and the P-type.When N and P-type silicon come into contact, they create their own electric field.The solar cell uses a maximum of 25% from the sun’s that produces of about 1000 watts of energy per square foot.

Solar cells are used for 1.street-lighting2. calculators3. operating water-pumps 4. running radio and television sets in remote areas.

No(i) Silicon cells are expensive(ii) Solar radiations are not uniform over the earth's surface(iii) Cannot be used at night or on cloudy

Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.

As 6 and 12 ohm are in parallelso equivalent = 6*12/6+12= 72/18= 4

now 4+6//10so 10*10/20= 100/20= 5 ohm

Option-D

really thanks

Energy conversion take place in a hydropower plant :Potential energy ⇒ kinetic energy ⇒ mechanical energy ⇒ electrical energy

option D is the correct answer

Option D is the correct answer.

firstly, according to the question's given condition

40ohm and 60 ohm are series so,

R = R(ac) + R (cb)

R = 100 + 60

R = 160 ohm ------------( 1 )

this R is parallel to 40 ohm,

therefore,

1 / R = 1 / 40 + 1 / 160

1 / R = 5 / 160

R = 160/5

R = 32 ohm.

The correct answer is option (d)200 ohm.

R=R1+R2=40+60=200;. 1/R=1/R1 + 1/R2=1/100+1/100=1+1/100=2/100=1/50

Speed=distance/time=182/5.5=33km/hr

speed= distance/time = 182/5.5= 33 km/hr

speed = distance / timeso' = 182/5.5 = 33 km /hr

Frequency of revoluation of Insect = No of revolaution completed in one second =7100=0.07S−1

(a) Angular Speed = 2πn=2∗227∗0.07=0.44radsec−1

Linear speed =ωr=0.44∗ 0.12 = 0.0528 metersec−1

(b)In this case accelearion is not a constant vector as direction of velocity is continious changing. This is centripetal accelearation and its magnitude is = ω2r = 0.0232 radsec−2

Elastic limit is maximum stress or force per unit area within a solid material that can arise before the onset of permanent deformation. When stresses up to the elastic limit are removed, the material resumes its original size and shape. Stresses beyond the elastic limit cause a material to yield or flow.

The modulus of elasticity of ductile iron in tension lies in the range of 162 to 170 GPa (23.5 × 106to 24.5 × 106psi) and does not vary greatly with grade.

Balance the force in vertical direction.

=> mg = (pVg)1 + (pVg)2

So,m = (0.4 g/ml)600cm³ + (0.6 g/ml)(400 cm³) as 1 ml = 1 cm³ so m = 480 gm.

Hope it clears.

Planetary wind can refer to any wind system of the earth'satmosphere which owes its existence and direction to solarradiation and to the rotation of the earth.

Amplitudeof the sound is nothing but the loudness or the amount of maximum displacement of the particles while the sound is produced.

90degree (dot product )

kaise

this sum is a model of your sum!!! check it!!!

therefore the angle b/w the two vectors is 90 degree

1 kg = 1000 gso 1kg/m³ = 1000g/m³

Tysm.