Multiple Choice
A 35- F capacitor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of 20 V.If the voltage across the capacitor is zero at time t = 0, what is the voltage at time t = 3.0 ms? Assume the phase constant is zero.
A) −20 V
B) −10 V
C) 0 V
D) 10 V
E) 20 V
Correct Answer:
Verified
Correct Answer:
Verified
Q16: An RLC series circuit is driven by
Q17: An ac generator producing 10 V
Q18: The angular frequency of a certain
Q19: The rms value of a sinusoidal
Q20: In an ideal 1:8 step-down transformer, the
Q22: An LC circuit has a capacitance
Q23: The primary of an ideal transformer has
Q24: An RL series circuit is connected to
Q25: The units of the power factor are:<br>A)ohm<br>B)watt<br>C)radian<br>D)ohm<sup>1/2</sup><br>E)none
Q26: An LC circuit has an inductance