Filters
Question type

A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery.The period of the electromagnetic oscillations in the circuit is:


A) 0.0227 s.
B) 0.377 s.
C) 2.26 s.
D) 105 s.
E) 1750 s.

F) A) and E)
G) None of the above

Correct Answer

verifed

verified

After a switch is thrown to remove the battery from a DC LR circuit, but the circuit is still left complete, the time constant represents:


A) the time rate of change of the current in the circuit.
B) the time rate of change of the induced emf in the circuit.
C) the magnitude of the ratio of the current to the time rate of change of the current.
D) all of the above.
E) only (a) and (b) above.

F) B) and C)
G) C) and D)

Correct Answer

verifed

verified

Find the magnetic energy stored in the air gap between two very large magnetic pole pieces, one North, one South, each with an area of 100 cm2.Assume the 0.05 T magnetic field is uniform within the 2-cm gap.

Correct Answer

verifed

verified

Showing 21 - 23 of 23

Related Exams

Show Answer