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A current carrying wire is placed in the grooves of an insulating semicircular disc of radius R , as shown in figure. THe current enters at point A and leaves from point B . Determine the magnetic field at point D.
17
Oct
A current carrying wire is placed in the grooves of an insulating semicircular disc of radius R , as shown in figure. THe current enters at point A and leaves from point B . Determine the magnetic field at point D. A current carrying wire is placed in the grooves of an insulating semicircular disc [...]
9. Find (i) the lateral or curved surface area of a closed cylindrical petrol storage tank that is 4.2 m in diameter and 4.5m high. (ii) How much steel was actually used, if 1/12 of the steel actually used was wasted in making the tank.
17
Oct
9. Find (i) the lateral or curved surface area of a closed cylindrical petrol storage tank that is 4.2 m in diameter and 4.5m high. (ii) How much steel was actually used, if 1/12 of the steel actually used was wasted in making the tank. 9. Find (i) the lateral or curved surface area of [...]
8. In a hot water heating system, there is cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface in the system.
17
Oct
8. In a hot water heating system, there is cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface in the system. 8. In a hot water heating system there is cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface in the system. October [...]
From the cylinder of radius R, a cylinder of radius R/2 is removed, as shown in figure. Current flowing in the remaining cylinder is I. Then , magnetic field strength is
17
Oct
From the cylinder of radius R, a cylinder of radius R/2 is removed, as shown in figure. Current flowing in the remaining cylinder is I. Then , magnetic field strength is a cylinder of radius R/2 is removed as shown in figure. Current flowing in the remaining cylinder is I. Then From the cylinder of [...]
7. The inner diameter of a circular well is 3.5m. It is 10m deep. Find (i) its inner curved surface area, (ii) the cost of plastering this curved surface at the rate of Rs. 40 per m^2.
17
Oct
7. The inner diameter of a circular well is 3.5m. It is 10m deep. Find (i) its inner curved surface area, (ii) the cost of plastering this curved surface at the rate of Rs. 40 per m^2. (ii) the cost of plastering this curved surface at the rate of Rs. 40 per m^2. 7. The [...]
6. Curved surface area of a right circular cylinder is 4.4 m^2. If the radius of the base of the base of the cylinder is 0.7 m, find its height.
17
Oct
6. Curved surface area of a right circular cylinder is 4.4 m^2. If the radius of the base of the base of the cylinder is 0.7 m, find its height. 6. Curved surface area of a right circular cylinder is 4.4 m^2. If the radius of the base of the base of the cylinder is [...]
Figure shows as Amperian path ABCDA. part ABC is in vertical plane PSTU while part CDA is in horizontal plane PQRS. Direction of circulation along the path is shown by an arrow near point B and at D. Phi B. dl for this path according to Ampere’s law will be
17
Oct
Figure shows as Amperian path ABCDA. part ABC is in vertical plane PSTU while part CDA is in horizontal plane PQRS. Direction of circulation along the path is shown by an arrow near point B and at D. Phi B. dl for this path according to Ampere’s law will be ABCDEFA was a square loop [...]
5. A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs. 12.50 per m^2.
17
Oct
5. A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs. 12.50 per m^2. 5. A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface [...]
4. The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m^2?
17
Oct
4. The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m^2? 4. The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete [...]
3. A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4cm. (see fig. 13.11). Find its (i) inner curved surface area, (ii) outer curved surface area (iii) total surface area
17
Oct
3. A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4cm. (see fig. 13.11). Find its (i) inner curved surface area, (ii) outer curved surface area (iii) total surface area (ii) outer curved surface area (iii) total surface area 3. A metal pipe [...]