Two identical resistors are connected in series across the terminals of a battery with a voltage V and a current i flows through the circuit. If one of the resistors is removed from the circuit and the remaining one connected across the terminals of the battery, how much current would flow through the circuit?
a) 4i
b) 2i
c) i
d) i/2
Ans: b) 2i
You might also like to view...
Matter Waves: If the de Broglie wavelength of an electron is 2.4 ?m, what is the speed of the electron? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
A. 3.0 × 102 m/s B. 2.5 × 105 m/s C. 1.7 × 103 m/s D. 8.3 × 106 m/s
As seen in 1987, when two silicon 28 nuclei fuse, or when seven alpha particles are added to a Si-28 nucleus, the initial result in either case is:
A) the shedding of bipolar planetary nebula shells. B) a nova explosion. C) iron 56. D) cobalt 56. E) nickel 56.
Water at 4°C will sink to the bottom of a pond because
A) it will not freeze there. B) it benefits fish and other life forms there. C) like a rock, it is denser than surrounding water. D) of the presence of microscopic ice crystals.
The Hubble Space Telescope is famous because, at least at the time of its launch, it was the largest visible light telescope ever built
Indicate whether the statement is true or false