Answer:
The charge flows through a point in the circuit during the change is 0.044 C.
Explanation:
Given that,
Number of turns in the copper wire, N = 200
Area of cross section, 
Resistance of the circuit, R = 118 ohms
If an externally applied uniform longitudinal magnetic filed in the core changes from 1.65 T in one direction to 1.65 T in the opposite direction.
We need to find the charge flows through a point in the circuit during the change. Due to change in magnetic field an emf is induced in it. It is given by :
Using Ohm's law :
Electric current is equal to the rate of change of electric charge. So,
So, the charge flows through a point in the circuit during the change is 0.044 C.
Answer:
2.5km
Explanation:
Assuming you also walk with the average human walking speed of 5 km/h. We know that speed=distance/time and now making distance the subject, distance is a product of speed and time. The time is 30 minutes, expressed in hours will be 30/60=0.5 hours. Substituting 5km/h for speed and 0.5 hours for time then the diatance covered will be
Distance=5*0.5=2.5 km
The net change in their depth in feet = -296 6/7 .Earth’s magnetic field is generated in the fluid outer core by a self-exciting dynamo process.
<h3>What is earth's magnetic field?</h3>
By means of a self-exciting dynamo mechanism, the fluid outer core of the Earth produces the magnetic field. The magnetic field is produced by electrical currents travelling through the slowly moving molten iron. The magnetic field that can be observed at the surface of the globe contains sources in the crust, ionosphere, and magnetosphere in addition to the Earth's core.
The geomagnetic field fluctuates on a variety of scales, and these variations are currently described in both the space and time domains, going from low- to high-frequency fluctuations. The last section explains how the Earth's magnetic field can be useful to modern society while also posing risks. However, techniques for monitoring the magnetic field are first outlined.
Hence, The net change in their depth in feet = -296 6/7 .Earth’s magnetic field is generated in the fluid outer core by a self-exciting dynamo process.
To learn more about earth's magnetic field, refer to
brainly.com/question/10736183
#SPJ4
Answer:
Very hot during the day and very cold at night.
Explanation:
Due to the thin atmosphere, they have very hot climate during the day time and very cold climate at night. This happens because they contain very low amounts of greenhouse gases. These gases retain the heat at night. The atmosphere also prevents excessive light and UV rays from entering. The thin atmosphere leads to many asteroids and comets hitting the surface of the planet. On earth, these asteroids usually, burn up in the mesosphere layer of the atmosphere. These asteroid collisions cause massive fires. This in turn, causes the temperature to increase during the day. During the night time, massive fires cannot burn due to the low temperature because of the lack of greenhouse gases.
