Answer:
The amount of work must be do to rotate the bar magnet is 151.2 J
Explanation:
Given:
Magnetic moment
Magnetic field T
To find work do to rotate the bar magnet,
From the formula of work done in case of magnetic field,
Here changes 0 to 180
But
J
Therefore, the amount of work must be do to rotate the bar magnet is 151.2 J
Answer:
A particle at t1= -2 seconds is at x1=4.8cm and at t2=4 seconds is at x2=9cm. Why can’t you calculate the average speed from this data?
Explanation:
the average speed of the distance travelled is needed to be know and we were only given displacement.
Well u should know this 24 hours
C. white light
Explanation:
All the visible color light waves are seen together and makes up a white light.
Visible light is made up of different colors and when they join together they are seen as the white light around us.
- During rainbow formation, we see the different colors of light that makes up a white light.
- when white light passes through a glass prism, the velocity and wavelength changes and we can see the different components of light.
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electromagnetic waves brainly.com/question/12450147
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In series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits.
And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.
Option A and D
<u>Explanation:</u>
A circuit consists of number of passive and active devices in it. And depending upon the connections between the passive devices, the flow of current and potential drop across them will be specified.
Like if the passive devices are connected parallel to each other, the current flow through each device will vary but the voltage drop will be same. Similarly, if the passive devices are connected in series, then the current flow will be constant in the devices but the potential drop will vary.
Thus, in series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits. And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.