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After Online tests for all subjects now it’s time to prepare the next level for Punjab board students to prepare their short question section here. We have a complete collection of all classes subject wise and chapter wise thousands questions with the right answer for easy understanding.
Here we are providing complete chapter wise Physics questions and Answers for the 10th class students. All the visitors can prepare for their 10th class examination by attempting below given question answers.
In this List we have included all Punjab boards and both Arts and Science students. These Boards students can prepare their exam easily with these short question answer section
Lahore Board 10th classes short questions Answer
Rawalpindi Board 10th classes short questions Answer
Gujranwala Board 10th classes short questions Answer
Multan Board 10th classes short questions Answer
Sargodha Board 10th classes short questions Answer
Faisalabad Board 10th classes short questions Answer
Sahiwal Board 10th classes short questions Answer
DG Khan Board 10th classes short questions Answer
Bahwalpur Board 10th classes short questions Answer
All above mention Punjab Boards students prepare their annual and classes test from these online test and Short question answer series. In coming days we have many other plans to provide all kinds of other preparation on our Gotest website.
How to Prepare Punjab Board Classes Short Question Answer at Gotest
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10th Class Physics Chapter 6 Electromagnetism Short Question Answer
Magnetic field lines help us to visualize the magnitude and direction of the magnet.
To produce magnetic field, we use permanent magnet or electromagnet which is called field coil.
The direction of an induced current in a circuit is always such that it opposes the cause that produces it is called lenz’s law.
The phenomenon of production of induced current in one coil due to change of current in a neighboring coil is called mutual induction.
The process of generating an induced current in a circuit by changing the number of magnetic lines of force passing through it is called electromagnetic induction.
“grasp a wire with your right hand such that your thumb pointed in the direction of conventional current. Then curling fingers of the hand will point out the direction of magnetic field”
The number of magnetic lines of forces passing through a surface area is called magnetic field strength.
A long coil of wire consisting of many loops is called solenoid.
The type of temporary magnet, which is created when current flows through a coil, is called electromagnet.
Electromagnetism is the study of magnetic effect of current.
1. Motors and electric meters are based on the effects of magnetism produced by electric current in wires.
2. Generator produce electric current due to the movement of wires near very large magnets.
1. In generator, we move the coil and current is produced.
2. It converts mechanical energy into electrical energy.
Transformer is used to increase or decrease the A.C. voltage, therefore a transformer cannot be operated on D.C. current.
The value of induced e.m.f in a circuit is directly proportional to the rate of change of number of magnetic lines of force passing through it.
Electric motor is a device which is used to convert electrical energy into mechanical energy.
Relay: A relay is an electrical switch that opens and closes under the control of electrical circuit.
FUNCTION: The relay is used to control a large current with the help of small current.
The coil in which change in current induces current in neighboring coil is called primary coil.
Weak ionic current in our body that travels along the nerve can produce the magnetic effect. This forms the basis of obtaining images of different parts of body. This is done using the technique called magnetic resonance imaging.
Walk through metal detectors are installed at air ports and other places for security purpose. These detectors detect metal weapons etc. Using the principle of electromagnetic induction.
The number of magnetic lines of force passing through any surface is known as magnetic flux.
A generator inside hydroelectric dam uses electromagnetic induction to convert mechanical energy of spinning turbines into electrical energy.