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Uniform magnetic fieldUniform magnetic FIELD can be prepared by making a comparatively long cylindrical coil.If magnetic INDUCTION have same magnitude and same DIRECTION at each or all points then it can be said as uniform magnetic field.Non uniform magnetic fieldMagnetic field cause by a bar magnet is non-uniform.If the magnetic induction varies in magnitude and direction at different points in a region then it can b non uniform.Strong magnetThe magnet which attracts or repeal each other with strong force is said to be strong magnet.WEAK magnetThe magnet which attracts or repeal each other with weak force is said to be weak magnet.

2PExplanation:VELOCITY, V = d(X)/DT = d(PT^2)/dt = 2tPAcceleration (a) = dv/dt = 2P

in which FOOD is COOKED EXPLANATION:

speee is EQUAL to distance by time.Explanation:Speed- Distance TRAVELLED by an object In PER UNIT time is called speed.

when we are pushing the bar magnet towards the coil current is GENERATED ,in other words electromagnetic induction, mechanical energy is CONVERTED into ELECTRICAL energy.this is nothing but CONSERVATION of energy

tion:the relation between electricity and MAGNETIC field is quite appreciable.some properties of MAGNETS are very useful to generate electricity.also magnetic field can be generated by motion of electrons in a current carrying conductor.these phenomenons are now been USED in some MODERN equipments that are very useful.

ent:1) A COPPER wire is PASSED through splits of wooden sticks.2) Connect the wire to 3 volts battery.3) Close the switch of the battery and PASS thecurrent.4) Bring the horse-shoe magnet near the wire.5) Then a force is experienced on the wire.6) Reverse the polarities of the magnet, then THEDIRECTION of the force is also reversed.7) The right hand rule helps the direction of flow of current and the direction of current.

nsformers works on the principle of electromagnetic PRODUCTION. 2)  Electrical generators works on the principle as electro magnetic induction. 3)  Security check at airports. railway stations. 4)  Tape recorders use to record voices or listen SONGS works on the principle of electromagnetic induction. 5)   ATM cards and SWIPING machines are also the application of law of electro magnetic induction.

hope this helpsExplanation: activity 1. Take a long straight copper wire, two or three CELLS of 1.5 V each, and a plug key. Connect  all of them in series. Place the straight wire parallel to and over a compass needle. Plug the key in the circuit. Observe the direction of deflection of the north pole of the needle. If the current flows from  north to south towards the east. Replace the cell connections in the circuit. This would result in  the change of the direction of current through the copper wire, that is, from south to north. Observe the change in the direction of deflection of the needle. You will SEE that now the  needle moves in opposite direction, that is, towards the west. It means that  the direction of magnetic field produced by the electric current is also reversed.activity 2. Take two different coils of copper wire having  large number of turns (say 50 and 100 turns  respectively). Insert them over a non-conducting  CYLINDRICAL ROLL, (You may  use a thick paper roll for this purpose.) Connect the coil-1, having larger number of  turns, in series with a battery and a plug key.  Also connect the other coil-2 with a  galvanometer. Plug in the key. Observe the galvanometer. Is  there a deflection in its needle? You will observe  that the needle of the galvanometer instantly  jumps to one side and just as quickly returns to  zero, indicating a momentary current in coil-2. Disconnect coil-1 from the battery. You will  observe that the needle momentarily moves, but  to the opposite side. It means that now the  current flows in the opposite direction in coil-2.

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The magnetic field induction is 1 TeslaExplanation:The formula for force acting on a CONDUCTOR is given byGivenForce acting on the conductor F = 8 NLength of the conductor L =  20 CM = 0.2 mCurrent in the conductor i = 40 ASince the conductor is placed perpendicular to the magnetic fieldTherefore, θ = 90°From the above formula we getTherefore, the magnetic field induction is 1 Tesla

A TELEVISION USES magnetic material to display pictures.When a magnet is brought NEAR it, the picture gets distorted to to DEVIATION of the material.hope it helped and PLS mark as brainliest:)

voltExplanation:the UNIT of potential DIFFERENCE is J/C or volt.hope it helped and pls MARK as BRAINLIEST:)

= M2V2= 20/1000 × 100 = 8 × V2 = 2 = 8 × V2 = V2 = 2/8 m/s= V2 = 1/4 = 0.25 m/s Therefore, the velocity of RECOIL of the refile is 0.25 m/s

It cannot derive relation or formula if a PHYSICAL quantity depends upon more than three factors having DIMENSIONS. It cannot derive a formula containing trigonometric FUNCTION, exponential function, and logarithmic function. It cannot derive a relation having more than one part in an EQUATION.

. We can use a better MATERIAL like non RUSTING metals or coat it with anything like copper or paint THANK you PLS mark BRAINLIEST

vnmurty ANGULAR DIAMETER is the angle SUBTENDED by the diameter of the planet at the eye..let the angular diameter be Ф.Let the eye be at A,  the center of the planet be O, and the diameter of the planet perpendicular to the line AO be BOC.    Ф = angular diameter = angle CAB = 2 * angle OAC     OB = OC = radius of the planet.        AO = 824.7 million km   tan (Ф/2) =   OB / OA   Diameter of Jupiter = 2 * OB = 2 * 824.7 * 10⁶ * tan [ 35.72 / (2 * 60 *  60) ]⁰                     =   142, 817.8 kmmarks as brainlist

The ANSWER is 253.8 rupee.Explanation:REFER to the PIC.

: 8333.33Aexplanation : according to Ohm's law, current through an IDEAL conductor is directly proportional to applied potential difference across it. i.e., V ∝ I ⇒ V = IR where R is proportionality constant is known as resistance of wire. here GIVEN, R = 100000Ω , V = 12 Volts so, I = 100000Ω/12volts = 8333.33 A hence, current that flows in your body when you TOUCH the TERMINAL of 12 V battery is 8333.33A

e fuse consists of a thin wire of low melting point. When the current in                       the fuse exceeds 20 A, the wire will heat up and melt. 2.  The CIRCUIT then becomes open and prevents the flow of current into the  household circuit. So all the electric devices are saved from damage that could be caused by OVERLOAD. 3.Thus we can save the house HOLDING wiring and devices by using FUSES. 4. In this way a small fuse prevents a GREAT damage to costly electrical appliances in the circuit.mark me as a brainliest

In this arrangement, if any one of the COMPONENT stops working,then the circuit gets broken up and none of the device will work. All the appliances have only one SWITCH due to which they cannot be turned on or off separately. The appliances do not GET the same VOLTAGE (220V) as that of the power SUPPLY line.Thanks for the question. Hope it helps you.

dt∝√xdx/√x=dt√x∝tv∝t

The principle of HOMOGENEITY is that the dimensions of each the TERMS of a dimensiional equation on both sides are the same . Any equation or formula involving dimensions (like MASS, length, TIME , temperature electricity) have the terms with same dimensions.Explanation:Please mark me as a BRAILIEST

height of object, h = 4 cm.object distance, U = 20cm.focal length, F = 15cm.first FIND image distance, V = ?by mirror formula,1/f = 1/v + 1/uthen, find magnification,m = h'/h = -v/u

let-v be VELOCITY F be frequency w be WAVELENGTH then they are RELATED as v=fw

tion:ORDER of magnitude states that if any digit is written in terms of power of 10 then the power of 10 digit will not be considered as SIGNIFICANT figureFor EXAMPLE: 2000m here total significant figures are FOUR but if we write this in terms of power of 10 then,it will be-2*10³m so here the significant figures will be only 1 bcoz of order of magnitude

r A SYSTEM of units is a set of related units that are used for calculations . For additional INFORMATION about DIMENSIONS , units , and contexts , see details . For example , In the MKS system, the best units are the metre , kilogram , and second , which represent the base dimensions of length , MASS , and Time , respectively . Hope it's HELPED you ...plz marks as Brainleist answer

tion:Electrical conductionBand theory, in solid-state physics, theoretical model describing the states of electrons, in solid materials, that can have VALUES of energy only WITHIN certain specific ranges. The behaviour of an electron in a solid (and hence its energy) is RELATED to the behaviour of all other particles around it. This is in direct contrast to the behaviour of an electron in free space where it may have any specified energy. The ranges of allowed energies of electrons in a solid are called allowed bands. Certain ranges of energies between TWO such allowed bands are called forbidden bands—i.e., electrons within the solid may not possess these energies. The band theory ACCOUNTS for many of the electricaland thermal properties of solids and forms the basis of the technology of solid-state electronics.

6.91 X 10^4Explanation:Factors of resistance - length and area which are DIRECTLY proportional to it then    R = pl/A    given, R = 100 ohm ,  length = 1m , Area of wire = area of cylinder      then ,                p = R x A / l                  p = 100 x 2 pi 0.1 [ 0.1 + 1 } / 0.1                  { : Area of cylinder = 2pi x r(RADIUS) [ r+l} }                      p = 6.91 x 10^4

tion:USING the relation P=V2/Rsince voltage ACROSS both the CELLS is sameso we conclude that resistance is INVERSELY proportional to power so the bulb with low power has greater resistance