First question (upper left): 1/Req = 1/12 + 1/24 = 1/8 Req = 8 ohms Voltage is equal through different resistors, and V1 = V2 = 24 V. Current varies through parallel resistors: I1 = V1/R1 = 24/12 = 2 A. I2 = 24/24 = 1 A.
Second question (middle left): V1 = V2 = 6 V (parallel circuits) I1 = 2 A, I2 = 1 A, IT = 2+1 = 3 A. R1 = V1/I1 = 6/2 = 3 ohms, R2 = 6/1 = 6 ohms, 1/Req = 1/2 + 1/1, Req = 2/3 ohms
Third question (bottom left): V1 = V2 = 12 V IT = 3 A, meaning Req = V/It = 12 V/3 A = 4 ohms 1/Req = 1/R1 + 1/R2, 1/4 = 1/12 + 1/R2, R2 = 6 ohms I1 = V/R1 = 1 A, I2 = V/R2 = 2 A
Fourth question (top right): 1/Req = 1/20 + 1/20, Req = 10 ohms IT = 4 A, so VT = IT(Req) = 4*10 = 40 V Parallel circuits, so V1 = V2 = VT = 40 V Since the resistors are identical, the current is split evenly between both: I1 = I2 = IT/2 = 2 A.
Fifth question (middle right): 1/Req = 1/5 + 1/20 + 1/4, Req = 2 ohms IT = VT/Req = 40 V/2 ohms = 20 A V1 = V2 = V3 = 40 V The current of 20 A will be divided proportionally according to the resistances of 5, 20, and 4, the factors will be 5/(5+20+4), 20/(5+20+4), and 4/(5+20+4), which are 5/29, 20/29, and 4/29. I1 = 20(5/29) = 100/29 A I2 = 20(20/29) = 400/29 A I3 = 20(4/29) = 80/29 A
Sixth question (bottom right): V2 = 30V is given, but since these are parallel circuits, V1 = VT = 30 V. Then I1 = V1/R1 = 30 V/10 ohms = 3 A. I2 = 30 V/15 ohms = 2 A. IT = 3 + 2 = 5 A 1/Req = 1/10 + 1/15, Req = 6 ohms
myopia is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry. It occurs when the shape of your eye causes light rays to refract incorrectly, focusing images in front of your retina instead of on your retina. It can be corrected corrected with eyeglasses, contact lenses or refractive surgery.
The phenomenon that is occurring is depicted in fig. Induction can be used to provide an explanation for this. As seen in Fig., when a negatively charged plastic rod is pushed close to a metal rod that is initially unaltered, the metal rod's left end picks up positive charges while the right end will pick up negative charges as a result of induction. when the empty metal ball is brought close to the metal rod's right end. The ball's near face subsequently develops a positive charge as a result of induction, and this positive charge attracts the rod since opposite charges are attracted to one another.
<h3>Define Induction?</h3>
Electromagnetic induction, often known as induction, is the technique of creating electrical current in a conductor by exposing the conductor to a fluctuating magnetic field. Because the magnetic field is thought to have induced the current in the conductor, it is known as induction.
Astronomers divide the planets into two groups in Solar system, the inner planets and outer planets. The inner planets are smaller and rockier and it is closer to the sun. The outer planets are larger , further far away and made of gas
The inner planets are Mercury, Venus , Earth and Mars. The outer planets Jupiter , Saturn , Uranus and Neptune comes after an asteroid belt. In some other planetary systems the gas are close to the sun.
particles in a disk of gas and dust will form Planets. If they orbit the star they are colliding and sticking. The stars wind blows away their gases . So the nearest planets to starts are rockier.