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law shows that how ELECTROMAGNETIC circuits follow the law of CONSERVATION of energy.When N(north)-pole of a magnet is moved towards the coil, the upper face of the coil acquires north polarity. A force of repulsion acts between the magnet and the coil. Therefore , work has to be done against the force of repulsion, in bringing the magnet closer to the coil. Similarly, when N-pole of the magnet is moved away, south polarity DEVELOPS on the upper face of the coil. Now a force of attraction starts to act between the magnet and the coil. Therefore, work has to be done against the force of attraction, in taking the magnet away from the coil. When we do not move the magnet ,work done is zero. Therefore no induced current is produced. It is the mechanical work done in moving the magnet w.r.t the coil that changes into electrical energy PRODUCING induced current. Thus , the energy is conserved. It only gets TRANSFORMED

constant current flows through a wire of UNIFORM AREA of cross-SECTION then potential difference between two points on the wire is directly proportional to LENGTH of this section of wire

doscope is an OPTICAL INSTRUMENT with two or more reflecting surfaces tilted to each other in an angle, so that ONE or more objects on one end of the mirrors are seen as a REGULAR symmetrical pattern when viewed from the other end, due to repeated REFLECTION

TEHERE IS UA ANSWER:Newton's First Law states that anobject will remain at rest or in UNIFORM MOTION in a STRAIGHT LINE unless acted upon by an external force. It may be seen as a statement about INERTIA, that objects will remain in their state of motion unless a force acts to change the motion.HOPE IT HELPS

the life of your electronics. Buy a case, keep your device clean, and avoid OVERCHARGING the battery. Buy ENVIRONMENTALLY friendly electronics. Look for products labeled Energy Star or certified by the Electronic Product Environmental Assessment Tool (EPEAT).Donate USED electronics to social programs—and help victims of domestic violence, children safety initiatives, environmental causes, and more. Ask your student REP for a POSTAGE paid mailer for your cell phone or ink cartridge. For each ITEM received, the World Wildlife Fund will receive one dollar

s the CIRCUIT.

: kepler's law, kepler's law of planetary motion.Kepler was the ASSISTANT of Tycho Brahe, a prevalent astronomer who worked before the invention of the telescope.Kepler reached his conclusions while using Brahe's careful astronomical observations to define the orbit of Mars.Kepler confirmed that Galileo's heliocentric view of the universe (as opposed to Brahe's more popular, mostly geocentric view of the universe) was correct.Kepler’s laws of planetary motion, in astronomy and classical physics, laws describing the motions of the planetsin the solar system. They were derived by the German astronomer JOHANNES Kepler, whose analysis of the observations of the 16th-century Danish astronomer Tycho Brahe ENABLED him to announce his first two laws in the year 1609 and a third law nearly a decade later, in 1618. Kepler himself never numbered these laws or specially distinguished them from his other discoveries.Kepler’s three laws of planetary motion can be stated as follows: (1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci. (2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time. (3) The squares of the SIDEREAL periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun. Knowledge of these laws, especially the second (the law of areas), proved crucial to Sir Isaac Newton in 1684–85, when he FORMULATED his famous law of gravitation between Earth and the Moon and between the Sun and the planets, postulated by him to have validity for all objects anywhere in the universe. Newton showed that the motion of bodies subject to central gravitational force need not always follow the elliptical orbits specified by the first law of Kepler but can take paths defined by other, open conic curves; the motion can be in parabolic or hyperbolic orbits, depending on the total energy of the body. Thus, an object of sufficient energy—e.g., a comet—can enter the solar system and leave again without returning. From Kepler’s second law, it may be observed further that the angular momentum of any planet about an axis through the Sun and perpendicular to the orbital plane is also unchanging.

in which SOUND is travellpitchfrequency

ateHere's your ANSWER HOPE it HELPS you ✌ ✌

!!!✔here is ua ANSWER:_____________________________________________________________________________❤The EMF of cell is MEASURED by potentiometer.hope it HELPS...!!!❤

o AWAY from the wire the concentric circles representing the MAGNETIC lines of forces will BECOME larger.Hope this HELPS.

att = 1000 watt and 1 watt = 1 joule/second and 15 kilowatt = 15000 watt and ALSO 1KWH = 1kW x 1h 1000W × 3600 s 1 kWh = 3.6 × 10^6 joules now 15000 watt = 15kWh x 1 HOUR = 15000 W x 3600 s = 54 × 10 ^ 6 j

that,f =1/t300/60 =1/tt = 1/5t = 0.2secondsHere we have TAKEN FREQUENCY as 5 because it is DEFINED as the no. of oscillations per SECOND.

to find the voltage .V= IRV = 200 volts.POWER = V * I = 200 * 1 = 200 W.Totally in 5 hours the power consumed Is 200 * 5 = 1000 watt HOUR.= 1 K w h.Please MARK my answer as brainliest.

it is a PHASE

n of ALTERNATING current is given by , where , A we know, = = 10A now, TAKE I = 10A at t = t' then, 10 = 10√2sin(100πt' + π/6) or, 1/√2 = sinπ/4 = sin(100πt' + π/6) or, π/4 = 100πt' + π/6 or, π/12 = 100πt' or, t' = π/1200π HENCE,the value of t' = 1/1200 sec

stances in the MOLECULE of those, the CENTRE of mass of positive CENTRAL core and negative charge coincide are known as non-Polar substance. These substances donot posses any permanent dipole MOMENT.The molecule in those the central of mass of positive charge and negative charge are seperated are called as polar molecules. They have permanent dipole moment.

NSWER ________________ ☺️☺️*STANDING wave➡️. Standing wave, also called STATIONARY wave, combination oftwo waves moving in opposite directions, each having the same amplitude and FREQUENCY. ... At all times there are positions (N) ALONG the rope, called nodes, at which there is no movement at all; there the two wavetrains are ALWAYS in opposition.➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️Cheers

answer]||||||||||||||||||||||||||||||||||||||| ☺️☺️let US have an easy to understand answer for this question, Dirt in water consists of moist sticky particles of some, however small but SIGNIFICANT mass. Due to turbulence of flow of water, these particles are subject to peripheral cohesive and adhesive forces which make them stick to the WALLS of the horizontal pipe.[This EFFECT is very less in VERTICAL pipes because the dirt particles get less chance to stick to the walls of the vertical pipe due to gravity.]Cheers

und is USED in many DIFFERENT fields. ULTRASONIC DEVICES are used to detect objects and measure distances.Ultrasound IMAGING or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws.hope that helps you....plz mark me brainlist.....!!

ogram-FORCE, or kilopond, is a gravitational metric unit of force. It is EQUAL to the magnitude of the force exerted by one kilogram of mass in a 9.80665 m/s² gravitational FIELD. The kilogram-force is an obsolete concept deprecated within the SI.

.velocitysq.hope it HELPS you

o's NUMBER is 6.023×10 POWER of 23

dent ray is a ray of light that strikes a surface. The ANGLE between this ray and the PERPENDICULAR or NORMAL to the surface is the angle of incidence. The reflected ray corresponding to a GIVEN INCIDENT ray, is the ray that represents the light reflected by the surface.

erefore ,R= V/ IR= (12/ 6)=2OHM resistance of the BATTERY is 2ohm

eflects BACK to our EYES, DUE to which we can SEE the OBJECT

Here is ua answer:CHARGES that aren't moving produce ELECTRIC fields. But when those charges do move, they instead create magnetic fields. ... The Biot-Savart Law is an equation that DESCRIBES the magnetic field created by a current-carrying wire, and ALLOWS you to calculate its strength at various points.

t 90% of POTENTIAL energy is CONVERTED into electrical energy...HOPE IT HELPS......

seed of LIGHT in air is GREATER than the speed of SOUND

s bewteen 180KM to 2000km, Its orbit is called as Low Earth ORBITS (LEO).

nce is OPPOSITION to flow of electric current through the circuit.S.I. unit of RESISTANCE is ohm.

work ALSO derive its formulawhat is powerwhat is MEANT by energyderive EQUATION for powerdifference between power and workdifference between power and energyHOPE THIS WILL HELP YOU

ng to Newton's third LAW of motion, action force is equal to reaction but acts on two different bodies and in opposite derections. When a HORSE PUSHES the ground, the ground reacts and EXERTS a force on the horse in the forward direction. The force is able to overcome friction force of the CART and it moves.HOPE THIS WILL HELP YOU

done when an object move or DISPLACES along the DIRECTION of forceit is a vector quantitydenoted by W W= Fd = mghF = FORCED = displacementits unit is JOULE

With INCREASING age, brain weight DECREASES by 2.7 gr in MALES, and by 2.2 gr in FEMALES per yearI Hope that you MARK this as brainlist