-
Do you still take this course in 8th grade?
-
Move the x to one side and the other to the other.
The second question is the same, and then take the intersection.
-
To the left, clockwise.
Because the temperature of the land is low at night (no matter how high the temperature is during the day, it is not used up, and the heat dissipation is fast), and the ocean is slow to dissipate heat due to its large specific heat capacity, so the air flow over the ocean rises, and the air on the land decreases.
And then it's a circle anyway, and it's easy to judge up and down.
-
Amount; Amount; Less than; Greater than; Greater than; Less than;
-
Equal to Less than Equal to Greater than Less than Trust me no problem.
-
Analysis: You can understand that the circuit needs a power supply to generate current, and the conductor that does the movement of cutting magnetic inductance lines in the magnetic field plays the role of equivalent to the power supply, if a circuit has only one power supply, then it must produce a current, which is the situation that a part of the conductor in the closed circuit does the movement of cutting magnetic inductance lines in the magnetic field. However, if there are other conductors (or all conductors) that are also cutting magnetic inductance lines, it is equivalent to having multiple power sources in a circuit, and if the effects of these multiple power supplies happen to cancel each other, then there is no current in the circuit, and if it cannot be canceled, there is a current, so when all conductors cut magnetic inductance lines, sometimes they can produce current, and sometimes they cannot.
-
Well, there is a certain area of the closed circuit, and the magnetic flux in this area needs to be changed to generate an induced current, so it is not necessarily a "part", and the title says "when a part..."It's because you're in the eighth grade yet
-
In a uniform magnetic field, the magnetic flux through the closed loop remains unchanged when the whole body cuts the magnetic inductance line, and no current is generated in the conductor.
-
The condition for the induced current to occur is a change in the magnetic field in the closed circuit. If a part of the conductor moves, then the area of the closed circuit is small, and the magnetic field through it changes, and an electric current is generated, and if all the conductors move, the magnetic field through it does not change, and the current is not generated.
-
The other part is used to derive the current.
This semester's ancient literature is very critical, and there is a possibility that the high school entrance examination will be questioned; The rest of the texts were listened carefully and just coped with the usual exams. Nope.
Solution: (1) First find the area of a footprint s
By m= wax v= wax s h , h is the average thickness of the paraffin model. >>>More
Analysis: Closing switch, ammeter, voltmeter have indications, because the light is very bright, indicating that the circuit resistance is small; Move. >>>More
This is a chemical change;
Chemical changes are prevalent in production and life. Such as the rust of iron, the fireworks of festivals, the neutralization of acid and alkali, and so on. On a macroscopic scale, it can be seen that various chemical changes produce new substances, which is characteristic of chemical changes. >>>More
Chapter 2 is China's Natural Environment. The whole chapter is the focus, what is the significance of the Qinling-Huaihe line, what are the climatic zones in China, the coldest and hottest places in China in summer, the coldest places and hottest places in winter, frontal rain, etc., the answers are all in the geography book.