A fuse or circuit breaker is placed in series with appliances as shown in this figure. Why not put it parallel to the appliances?
a. That would cause too much current into the appliances.
b. It would work the same as putting them in series.
c. The fuse or circuit breaker must be able to stop an excess current through the appliances by stopping the current through itself.
d. It would have only half the current flowing through it if it were in parallel.
e. It would waste electrical energy by being connected all the time that way.
c
You might also like to view...
What do scientists believe to have caused the Tunguska event?
a. a comet b. an iron asteroid c. a stony-iron meteorite d. a stony asteroid e. a carbonaceous chondrite
The Hubble Space Telescope objective mirror is not affected by
a. bad seeing. b. chromatic aberration. c. diffraction. d. chromatic aberration and diffraction. e. bad seeing and chromatic aberration.
Exclusion Principle: A hydrogen atom is in the 6h state. What is the principal quantum number.
A. 0 B. 3 C. 5 D. 6 E. 7
On this graph, the black curve represents actual temperature measurements, the red curve represents models of the climate that include human emissions of greenhouse gases, and the blue curve represents models of the climate that include only natural factors but do not include human emissions of greenhouse gases. What is the key message that can be read from this graph?
A) Models support the conclusion that human emissions are driving global warming. B) Different climate models give different predictions about how much global warming should be occurring. C) Climate models can successfully reproduce Earth's climate for the first half of the 20th century, but after that, they are unable to account for actual temperature data. D) Although some models support the idea that global warming is caused by human activity, other models do not and the cause therefore remains controversial.