12. How does the resistance of a wore depend on the dimensions of the wire?

26. A hot do can be cooked by “plugging it in” so to speak. (note: this is a lecture demonstration to be undertaken by the instructor and should not be attempted at home. It can be dangerous? It takes only a minute or so to heat the hot dog. There are now commercially available hot dog cookers that operate on the same principle and cook several gods at one time. What causes the hot dog to cook?

9. A long straight horizontal wire carries a direct current to the north. In what general directions would a compass needle point if the compass were placed;

                a. above the wire?

                b. Below the wire

                c. on either side of the wire?

                What would have happened in each case if the wire carried alternating current?

4. If a current of 1.0 A flows in a wire, what is the net number of electrons passing through a cross-sectional area of the wire in 3.0 s?

19. A copper wire has a diameter of 0.460in. What is the resistance of 500 ft of his wire at room temperature?

35. a hair dryer rated at 1200 W operates on 120V.

                a. How much current does the dryer draw?

                b. if the dryer cord has a resistance of 0.020 what fraction of the total wattage is dissipated in the cord as joule heat?

4. A circuit is made up of 120-V battery with a 4-ohms resistor and a 6- ohms resistor in parallel

                a. What is the voltage across each resistor?

                b. How much current flows through each resistor?

3. A long horizontal, straight wire runs north and south. It is descried to produce a magnetic field of 2.0 x 10^-6 T vertically upward at a point 40cm directly east of the wire. What should be the magnitude and direction of the current in the wire? 

AccountingQueen

(3)

Status NEW Posted 24 Aug 2017 01:08 PM My Price 8.00

Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- us-----------ing----------- ou-----------r w-----------ebs-----------ite----------- an-----------d a-----------cqu-----------isi-----------tio-----------n o-----------f m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l

Not Rated(0)

• Buy Answer