Videos are very efficient in developing a concept. So, we put some videos here. The videos, we present in this section, are prepared by funlearn. You may also watch these videos in YouTube because funlearn is a YouTube channel. PhysicsCare and funlearn are partners. These educational videos are short. Duration – 2 to 5 minutes. Therefore, watching them help the students understand the topics.
Please check if your homework problem is from the topics explained in our videos. In that case, we suggest you to watch the videos closely related to your problem. Pay much attention to follow each and every step. Consequently, you may develop a capacity to handle the problem on your own.
Here, PhysicsCare presents some of the common physics problems. Our experts choose the problems from mechanics, electrostatics, magnetostatics, and current electricity. But, we plan to add a few more in the future. In each video, a problem is discussed step-by-step because they focus to develop a clear concept on some area of physics. So, these examples should play, partially, the role of your online physics tutors. Therefore, you may find this free service useful in solving some of your homework problems.
Videos: Mechanics
Videos explain, here, different topics of mechanics. At present the topics cover friction and conservation of momentum. So, watching these videos gives clear concept on some of the aspects of mechanics.
1. Friction: body on inclined plane
This problem involves a body placed on an inclined plane, which offers friction. The problem covers different probable aspects of this kind of situation. Therefore, you learn how to draw the free body diagram, how to resolve a vector in two components, etc. from these videos.
2. Conservation of Momentum – explosion
This video explains the application of conservation of momentum in case of an explosion. As no external force acts on the system, the total momentum (of the system) remains conserved. The equations are formed systematically and solved. Hence, you now can try to work out these cases.
3. Conservation of Momentum – collision
This one also (like the previous) explains the application of conservation of momentum. But, this one covers a case of a collision between two objects. In this case, the collision is inelastic. Thus, you can now handle these problems more efficiently.
Videos: Electrostatics
These videos explain different topics of static electricity. Gauss’ law is a strong instrument for solving the problems on electrostatics. More relevantly, this law is applicable when the distribution of charge is geometrically symmetric. Our next two videos are covering two cases where Gauss’ law is used conveniently to solve the problems. As a result, you can get a clear idea on how to use Gauss’ law in different problems.
1. Gauss’ Law – charged spherical shell
The object is a charged spherical shell. So, the charge distribution has a spherical symmetry. We determine the electric fields at different distances from the center. Thus, this problem gives you a good introduction to Gauss’ law problems.
2. Gauss’ Law – charged hollow sphere
Here, also, we use Gauss’ law to determine the electric field around a charged hollow sphere. For a sphere, the charge distribution is symmetric. So, we can use Gauss’ law to determine the electric fields at different distances from the center of the sphere. Therefore, this problem puts you on a farm base for solving the problems on symmetric distribution of charge.
Videos: Magnetostatics
Magnetostatics is the study of magnetic fields for the systems with steady electric currents. This implies that the currents are not changing with time. This current can be produced by using an e.m.f. or the current can be the result of the motion of a body that contains some charge on it.
1. Magnetic moment of a charged circular loop
In this case, a circular ring rotates about one of its diameter. The ring contains charge and the charges are uniformly distributed. Rotation of the charges on the ring produces current. In turn, this current produces magnetic field. We determine the magnetic moment of the rotating object. Here we present the step-by-step solution of the problem.
Videos: Current Electricity
Moving charges constitute the electric currents, which associate magnetic fields as well. In an electric circuit, current depends on the pattern of the circuit and the components present in it. In case of a simple circuit, we can find out the unknown quantities, only using Ohm’s law. For relatively complicated circuits, we need to apply Kirchhoff’s laws.
1. How to use Kirchhoff’s Laws in an electric circuit
For the given circuit, we cannot reach the solutions using only Ohm’s law, or the laws of simple combinations of resistors. Therefore, we use Kirchhoff’s laws in this case. Follow the way we have solved the problem. This leads to learning the correct application of the laws.
More videos are coming 😀
Solutions & Live Lessons
Use our FREE Trial Offer
