A capacitor C is connected in series with a resistor R across a battery and an open switch. If a second capacitor of capacitance 2C is connected in series with the first one, the time constant of the new RC circuit will be
A) smaller than before. B) larger than before.
C) the same as before. D) variable.
A
You might also like to view...
The amplitude of a sound wave is closely related to
A) loudness. B) pitch. C) quality. D) timbre. E) all of the above
A projectile is shot from the surface of Earth by means of a very powerful cannon. If the projectile reaches a height of 35,000 m above Earth's surface, what was the speed of the projectile when it left the cannon?
A) 355 m/s B) 505 m/s C) 827 m/s D) 710 m/s E) 906 m/s
When white light goes from air into water, the color that refracts the most is
A) red. B) orange. C) green. D) violet. E) all refract the same amount.
Is the following decay allowed? ?° ? ?+ + v?
A) Yes. B) No, because charge is not conserved. C) No, because mass is created. D) No, because lepton number is not conserved.