Question

Question 6 

The inductance of a solenoid 10.0cm long with a cross-sectional area of 1,00 x 104 m2 is 0.400 mH. How many turns of wire does this solenoid have? 

318,000  159,000  564  282 

Question 12 

A 4 Ohms resistor is connected in parallel with a 20 resistor? 

2.0A  2/3 A  3.0A  4/3 A 

A solenoid with a certain number of turns and carrying a current of 2A has a length of 34cm. If the magnitude of the magnetic field generated at the center of the solenoid is 8 mt, what is the value of N? 

800  1591  3183  1082

Question 18 

An electric device delivers a current of 2 A for 10 seconds. How many electrons flow through this device? 

20  4  1.3 * 10^(20)  12.6*10^(20)

Answer 1