Answer
(1) serialization
(2) possible
(3)b
(4)c
(5)d
[decomposition] [resolution] [i]: (1) the vapour switch on the electric hot water kegs interacts with the double-metal plate switch and can work only if it is closed at the same time. When a switch is disconnected, the circuits are disconnected and the circuits are connected to the circuits; (2) in order to prevent a leak in the electrical circuit, the shell of the metal shell is wired to the shell, causing an electrocution, so that the electrical shell must be connected to the wire on the tri-hole, so that the power plug used in the electric kegs must be a three-foot plug when connected to the circuit, so that if the three-line plugs are not used, the metal shell of the hand-touching kettle is likely to touch the electricity ... (3) a, as the image is known, the metal blade bends to a level, indicating that the metal layer aa is slower than b to expand, so that it is wrong; b, the spin button in the control chart c, so that when the kettle moves to the left, the two metal blades will have more to break the circuits to the left, so that the temperature will be
C. When the water is burned, a large amount of water vapour inside the canteen will drive the steam switch to break, and when the steam switch is broken, the steam switch and the double metal plate switch at the base of the heater will be severed because the temperature will be reduced and therefore not simultaneously
D. Double-metal tablets are frequently out of power at a time when the current is large, the heat generated in a unit of time is high, the possibility of burning is high, but not necessarily dry, so d is wrong
So choose b; (4) the final temperature of the heater should be in the t2-t3 range when the maximum-hour power and the highest temperature of the resistance is reduced and increased by the ptc canteens after electrocution. C.(5) is thus known by image c, and the resistance of heat materials increases over time, smaller and larger, by p=
You know, it gets smaller when it gets bigger, and then it gets smaller; so it's all right
So the answer is: (1) serial; (2) possible; (3) b; (4) c; (5) d
The subject is primarily a review of the knowledge points related to the construction of the plugin and the definition of working methods and electrical power, requiring knowledge that all household appliances and outlets are connected ... And that switches are linked to electrical appliances under its control; electric power (p): the power of the current within a unit time... The physical amount of the current being performed at a slow pace
