1. Suppose that you wish to constrtuct a simple AC generator with an output of 1
ID: 1440812 • Letter: 1
Question
1. Suppose that you wish to constrtuct a simple AC generator with an output of 12. V maximum when rotated at 60 HZ. A magnetic field of o.050 T is available. If the area of the rotating coil is 100cm "squared" how many turns are needed?
a. 283 b. 400 c. 600 d.1 e.64
2. A single-turn plane loop of wire with cross-sectional area 200cm "squared" is perpendicular to a magnetic field that increases uniformly from .200 T in 2.20 seconds. What is the magnitude of the induced current if the resistance of the coil is 8.00 ohms?
a. 0A b. 3.18A c. 3.18mA d. 2.95mA e. 2.95 A
3. A conducting rod whos length is 25cm is placed on a u-shaped metal wire that has a resistance of R of 8.00 ohms. The wire and the rod are in the plane of paper. A constant magnetic field strength of .4T is applied per pendicular and into the paper. An applied force moves the rod to the right witha constant speed of 6m/s. What is the magnetitude of the induced emf in the wire?
a. .3V b. .6V c. 6V d. 30V e. 60V
4. The inductance of a solenoid 16.0 cm long with a cross-sectional are of 1.00x10^-4 m "squared" is 1.00mH. How many turns of wire does this solenoid have?
a. 318,00 b. 159,000 c. 1130 d. 282 e. 150
5. The primary coil of a transformer has 100 turns and its secondary coil has 400 turns. If the AC voltage applied to the primary coil is 120V what voltage is present in its seconday coil?
a. 100V b. 30V c. 70V d. 480V e. 400V
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Explanation / Answer
Multiple questions I am allowed to answer only 1 question at a time According to the chegg guidelines.
Solution 5 ) The primary coil of a transformer has 100 turns and its secondary coil has 400 turns. If the AC voltage applied to the primary coil is 120V what voltage is present in its seconday coil?
Answer) As we can see from the question itself we need to find the voltage present in its secondary coil.
V = ( 120 V ) * ( 400 / 100 ) = 480 V ====== OPTION D) 480 V ==============ANSWER)
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