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Two concentric solenoids carry currents in opposite directions. The inner solenoid has 50 turns per cm. The outer
solenoid has 20 turns per cm. The inner coil carries a current of 0.5 A. (a) Calculate the current needed in the
outer coil so that its fields cancels the field produced by the inner coil. (b) How large a field is produced by the
inner coil?
2. Starting from one oasis, a camel walks 25 km in a direction 30° South of West and then walks 30 km toward the North to a second oasis. What distance separates the two oases? You may use triangle method or component method.
A rectangular lot has an area of 30m^2. If its length is 10ft, what is its width in inches?
The least wave length of the electro,magnetic spectrum
Calculate the molality of a sulfuric acid solution containing 24.4 g of sulfuric acid in 198 g of water. The molar mass of sulfuric acid is 98.09 g.
iron crystallizes in a bcc latics with a unit cell length of 5.20armstrong at 20 degree centigrate calculate the atomic radiun of iron crystal
A taho vendor carries a 1.5 m long light plank over his shoulder. At the ends of the plank are two buckets weighing 40 N and 60 N respectively. (a) Find the value of force F exerted by his shoulder. Neglect the weight of the plank. ( b) Where should he support the plank for it to be balanced horizontally ( refer to FIG 1)
Activity 2: Identifying Conductors and Insulators. Identify which of the following are conductors and insulators by using a table. Procedure Activity 2: Identifying Conductors and Insulators. Identify which of the following are conductors and insulators by using a table. Procedure 1. The following materials must be prepared: an electroscope, materials such as fur, glass, wood, silk, coins, steel, washers, rubber, paper, and a charged plastic sheet.
Activity 2: Identifying Conductors and Insulators. Identify which of the following are conductors and insulators by using a table. Procedure 1. The following materials must be prepared: an electroscope, materials such as fur, glass, wood, silk, coins, steel, washers, rubber, paper, and a charged plastic sheet.
14. How many electrons have been removed from a positively charged particle if it has a net charge of 5 x 10-9 C? A. 5 x 10-9 electrons C. 1 x 10-8 electrons B. 2.5 x 10-9 electrons D. incomplete information D A C B η 16 _____15.A sphere of radius 0.05 m has a charge of 2.0 nC. The charge is said to be located at the center of the sphere. The magnitude of electric field inside the surface is A. zero C. half the original value B. twice the original value D. thrice the original value
