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:A MAGNETIC needle, FREE to ROTATE in a vertical PLANE, orients itself vertically at a certain place on the EARTH

r !! Answer:logoType Your Questionopen sidebarcamera-retro-copyClick Question to Get Free Answersnavigate-nextWatch 1 minute videowhatsappGet Instant Video Solutions 24*7 on 8400400400ASK DOUBTquestion-mark-1Question From class 12 Chapter MAGNETIC EFFECT OF CURRENT AND MAGNETISM(a) Magnetic field lines show the directions (at every POINT) which a small magnetised needle takes up (at that point). Do the magnetic field lines also represent the lines of force of a moving charged particle at every point?
(b) Magnetic field lines can be entirely confined WITHIN the core of a TOROID, but not within a straight solenoid. Why?
(c) If magnetic monopoles existed, how WOULD Gauss's law of magnetism be modified?
(d) Does a bar magnet exert a torque on itself due to its own field? Does one element of a current carrying wire exert a force on another element of the same wire?
(e) Magnetic field arises due to charges in motion. Can a system have magnetic MOMENT even though its net charge is zero?
(f) Magnetic force is always normal to the velocity of a charge and therefore does no work. An iron nail held near a magnet, when released, increases its kinetic energy as it moves to cling to the magnet. What agency is responsible for this increase in kinetic energy if not the magnetic field?Hope it helps

er Answer:A MAGNETISED NEEDLE in a uniform magnetic field EXPERIENCES a torque but no NET force because the forces experienced by it are equal in magnitude, opposite in direction and have different lines of action. Therefore, the net force is zero .

Bullet stops - this MEANS that the final VELOCITY of bullet is 0. Here assuming that the DECELERATION is constant, we apply equations of motion.u= 100m/sa=?t= 0.05sv= 0 a= v-u/t = 0-100/0.05= -2000m/s^2F = ma=2.5*10^-3*2*10^3 =-5N

Difference Between Rest and Motion With Examples. In physics, rest and motion are TWO different states of a body. ... A body is said to be at rest if its POSITION does not CHANGE with RESPECT to its surroundings. WHEREAS, when the position of a body changes with respect to its surroundings, it is said to be in motion.hope it helps ❤

This is a GOOD CONCEPTUAL question.Mark as BRAINLIEST PLEASE

tion:1. It explains why a body falls on Earth when left freely in air. 2. It is responsible for tides.3. It explains why the Luna (Earth's moon) keep revolving AROUND the Earth. 4. It explains why the eight pants of the Solar System keep revolving around the Sun ☀.5. It explains why TWO FREE bodies ATTRACT each other in the space.

Force between TWO CHARGES in a medium = 100 N Dielectric constant = 5We know that , ➡The ratio of force b/w two charges in a VACCUM to the force in a medium is called dielectric constant ➡It is denoted by " K "➡Thus ,Hence , The force b/w two charges in a air is 500 newton

region or part of a town, a country, or the world.the SI unit of area is square meterformula to find area of rectangle is length multiply by breathvolume= the amount of space that a substance or object occupies, or that is enclosed within a container.the SI unit of volume is CUBIC meter length multiply breadth multiply height DENSITY=a measure of the amount of information on a storage medium.SI unit of density is kilogram per cubic metreiron is DENSER than wood Reason IRON is denser than wood. The masses of the atoms and the spacing betweeen them determine the density of materials. ... It is the measure of the compactness of matter, of how much mass occupies a given space. Thus, iron is denser than wood (provided we consider the amounts of iron and wood to be the same).speed =the rate at which someone or something moves or operates or is able to move or operate.SI unit to speed is meter per second formula to find speed speed = DISTANCE traveled divide by time taken

180×5/18 =50 m/shope this HELPS U

Electric Charge and Electric FieldIt takes 6.25x1018 protons to form 1C of POSITIVE charge. Find the charge of each PROTON. Q2. How many ELECTRONS are there in - 1mC

An open lift is moving UPWARDS with VELOCITY 10m/s.it has an upward acceleration of 2m/s. A ball is PROJECTED upwards ...

i hope this is useful for u plsa follow meExplanation:glucose, dextrose, or grape sugar, monosaccharide sugar with the empirical formula C6H12O6 . This CARBOHYDRATE occurs in the sap of most plants and in the juice of grapes and other fruits. Glucose is a normal component of animal blood; it thus requires no digestion prior to absorption into the bloodstream. Glucose can be obtained by hydrolysis of a variety of CARBOHYDRATES, e.g., milk and cane sugars, MALTOSE, cellulose, or GLYCOGEN, but it is usually

A.6th ROUND -1200m B. HALF Round -100m C. ONE Complete Round -200m D. QUARTER Round -50M

From the FIGURE Tsin30∘=30Tsin30∘=30….(i) Tcos30∘=WTcos30∘=W ….(II) By SOLVING EQUATIONS (i) and (ii), we GET W=30√3NW=30root3Nand T=60N

So if capacitors C1, C2, C3 are connected in parallel, overall CAPACITANCE will be equal to (C1 + C2 + C3). Effective or EQUIVALENT capacitance effective or equivalent capacitance of capacitor connected in parallel is calculated by automatically adding the VALUE of each capacitor. Yes, you add the CAPACITANCES.

m/ square second is the SI unit of acceleration.A BODY is SAID to have a non uniform acceleration if it's velocity increase by unequal amount in equal interval of TIME .PLEASE MARK ME AS BRILLIANT

hello dearExplanation:if MAGNETIC POLES were discovered then Guass law for magnetism would STATE divergence of B would be proportional to magnetic charge density row m, ANALOGOUS to Guass law for electrichope it will help youplease mark me as BRAINLIEST

tion:The magnetic moment is associated with the spin and orbital motion of the electron. The net (vector sum) magnetic moment of electrons in an atom/ion gives rise to the magnetic moment of the atom/ion. Quantum effects and band structure plays an IMPORTANT role in determining the moment of an atom or ion in a solid. This moment is MEASURED in units of emu (erg/Oe) in cgs system, and in A.m2 in SI system. The magnetic moment due to spin only of an electron is 1 Bohr Magneton = 9.27x10-21emu =9.27x10-24 A.m2. The orbital moment in most transition metals (except Co) is QUENCHED, and the net moment is due to electron spin. The magnetic moment of an Fe atom in metallic iron is 2.2 Bohr magnetons. To convert this into magnetization, which is the magnetic moment per gram (or magnetic moment per unit volume) we find the magnetic moment per cubic cell ( which contains 2 Fe ATOMS in bcc Fe metal) and divide this moment by the cell volume to obtain the magnetization in units of emu/cm3. The SPECIFIC magnetization (emu/g) is obtained by dividing the above magnetization by the metal density. Fe example:M = 2x2.2x9.27x10-21/(2.87x10-24)3 = 1725 emu/cm3sigma = 1725/7.87 = 219 emu/g which is the specific magnetization for metallic Fe.Fe3+ in iron oxide crystal has a moment of 5 Bohr magnetons at zero temperature (which is the sum of the moments of 5 electrons in the 3d-band) for example. The same procedure above can be used to calculate the magnetization of a collinear magnetic structure in an iron oxide or any other other magnetic material.

tion:Yes, every MAGNETIC configuration must have a NORTH south pole as monopoles to not exist in nature. In a TOROID, there is always some gap LEFT at the the junction where the current enters and leaves the toroid. Those two junctions ACT as north and south pole.

A dipole placed in a uniform electric FILED is in Stable equilibrium when the electric field is DIRECTED ALONG the direction of the dipole i.e., when is parallel to. Unstable equilibrium when the electric filed is directed at an angle of 180 degrees with the direction of the dipole.*Hope this will help you. PLZ like and FOLLOW me .

Gauss's LAW for magnetism STATES that no magnetic MONOPOLES exists and that the total flux through a closed surface must be zero.*HOPE this will HELP you. plz like and follow me .

60°Explanation:Earth's magnetic field lies in the vertical plane, 12° WEST of the geographic MERIDIAN, making an ANGLE of 60° (upward) with the HORIZONTAL DIRECTION. Its magnitude is 0.32 G.*Hope this will help you. plz like and follow me .

tion:In BOHR’s model of the hydrogen atom, the electron moves in a circular orbit AROUND the proton. The electron passes by a particular point on the loop in a certain TIME, so we can calculate a current I=Q\text{/}t. An electron that orbits a proton in a hydrogen atom is therefore analogous to current flowing through a circular WIRE . In the STUDY of magnetism, we saw that a current-carrying wire produces magnetic fields. It is therefore reasonable to conclude that the hydrogen atom produces a magnetic field and interacts with other magnetic fields.

Magnetic field arises due to charges in motion. A SYSTEM can have a magnetic moment EVEN though its net charge is zero. It is because, the average charge of a system may be zero, but it is not NECESSARY that magnetic moments due to various current LOOPS will also be zero.*HOPE this will help you. plz like and follow me .

unit of a MAGNETIC DIPOLE MOMENT is wb*m, and the SI unit of a magnetic moment is A*m^2 or J/Tesla.

It is BCOZ LIGHT travels from rarer to denser medium and hence the light RAY BENDS..

The defect of the EYE that can be corrected by using CYLINDRICAL LENS is Astigmatism.hope it helps

240 DEGREE celcuis heat ENERGY is REQUIRED to raise the TEMPERATURE of unit mass of substance by 10C

Well the answer is pretty simple as the WAVELENGTH of the red LIGHT is the HIGHEST among all other VIBGYOR colors so it can easily travel a very long distance without any disturbance.MARK AS BRAINLIEST

the UNIVERSAL LAW of gravitational STATES the force of attraction between two bodies DUE to their MASS

the PROPERTY of CONDUCTOR due to which it opposes a FLOW of electric current through it is CALLED total electric resistance. THANKS

The paths, along which the UNIT POSITIVE charge will MOVE due to electrostatic force in the field are called electric lines of force. We CONSIDER the direction of electric lines of force as the direction of the movement of unit positive charge in the field. ... We PLACE a unit positive charge at a point in the field.

Factors - SQUARE of CURRENT, RESISTANCE of the given conductor, TIME for which the current flows. Application - electric HEATING devices like electric iron or any other / electric bulb / electric fuseExplanation:pls mark as brainliest...

Motion - it is movement of any object from one POSITION to another with respect to the observerTime - time cannot be defined.it only increase.ACCELERATION- the RATE of change in VELOCITY is called acceleration.

by newton 3rd law of motion :for every ACTION there is equal and opposite reaction. THEREFORE,it is difficult for a Fireman to hold a HORSE which ejects large amount of water at a high VELOCITY

hhhhhhhhhhhhhhhhhhhhhhhhhhh      gvgvgvExplanation:JH

truehope this HELPS you

449192,!2!=1882,vBznxnxnzmznsn znfahahan77889929,2,1,1Explanation:cCcvgsjsnans? N

(C) is the CORRECT OPTION