Impedance: For a series ac circuit consisting of a resistance of 13.0 k?, a capacitance of 7.0 ?F, and an inductance of 35.0 H, what frequency is needed to minimize the impedance if the voltage amplitude is 110 V?
A. 0.010 kHz
B. 0.064 kHz
C. 12 kHz
D. 2.1 kHz
Answer: A
You might also like to view...
A 250-kg crate is placed on an adjustable inclined plane. If the crate slides down the incline with an acceleration of 0.25 m/s2 when the incline angle is 25°, then what should the incline angle be for the crate to slide down the plane at constant speed? Note: g = 9.8 m/s2
a. 12° c. 24° b. 21° d. 29°
A basketball player pushes down with a force of 50 N on a basketball that is inflated to a gauge pressure of 8.0 × 104 Pa. What is the diameter of contact between the ball and the floor?
A) 2.8 cm B) 1.4 cm C) 1.7 cm D) 2.1 cm E) 5.6 cm
How many Saros cycles does it take for the same eclipse to occur at about the same location on Earth?
a. one cycle b. three cycles c. 18 cycles d. 22 cycles e. 54 cycles
Suppose you drop a 10-pound weight and a 5-pound weight on the Moon, both from the same height at the same time. What will happen?
A) Both will hit the ground at the same time. B) The 10-pound weight will hit the ground before the 5-pound weight. C) The 5-pound weight will hit the ground before the 10-pound weight. D) Both weights will float freely because everything is weightless on the Moon.