Question

UNIVERSITY PHYSICS 2 EXAM 2 REVIEW. PLEASE PROVIDE DETAILED SOLUTIONS TO EACH QUESTION. I WILL LEAVE A BIG LIKE. I WILL COMMENT AS LIFESAVER!!!

2) A conducting bar moves along frictionless conducting rails connected to a 4.00-? resistor as shown in Figure above The length of the bar is 1.60 m and a uniform magnetic field of 2.20 T is applied perpendicular to the paper. What is the applied force required to move the bar to the right with a constant speed of 6.00 m/s?

A) 8.60 N

B) 9.30 N

C) 10.6 N

D) 12.6 N

E) 18.6 N

Answer: E

3) A conducting bar moves along frictionless conducting rails connected to a 4.00-? resistor as shown in Figure above. The length of the bar is 1.60 m and a uniform magnetic field of 2.20 T is applied perpendicular to the paper. An applied force moves the bar to the right with a constant speed of 6.00 m/s. At what rate is energy dissipated in the 4.00? resistor?

A) 60 W

B) 121 W

C) 21.2 W

D) 112 W

E) 11.5 W

Answer: D

4) The phase angle of an RLC series circuit with a capacitive reactance of 40?, a resistor of 100? and a certain inductor at 1000 Hz is 40.0°. What is the value of the inductance in this circuit?

A) 11.8 mH

B) 124 mH

C) 212 mH

D) 61.9 mH

E) 19.7 mH

Answer: ?

5) A 120-V rms voltage at 1000 Hz is applied to an inductor, a 2.00-?F capacitor and a 100-? resistor. If the rms value of the current in this circuit is 0.680 A, what is the value of the inductor?

A) 34.2 mH

B) 35.8 mH

C) 11.4 mH

Answer:B

Answer 1