Answer: A motor works on the principle of magnetic effect of current. When a rectangular coil is placed in a magnetic field and current is passed through it, a force acts on the coil which rotates it continuously. When the coil rotates, the shaft attached to it also rotates.
Just so, how does an electric motor work class 10?
Working Principle of Electric Motor
The electric motor works on the principle that when a coil is placed in the magnetic field and the current passes through it resulting in rotation of the coil.
Then, what are the two methods of producing magnetic field?
Magnetic field can be produced by any of the following methods: (i) Any magnet-bar magnet, horse-shoe magnet or round magnet can be used. (ii) A wire carrying current produces a field around it. (iii) A loop or solenoid carrying current.
What is Electromagnetic Induction class 10?
The production of Electricity from Magnetism is called Electromagnetic Induction. We can produce current by. Moving conducting Wire inside a Fixed Magnetic Field. (Hence, if we keep a conducting wire near the magnetic field of magnet and move it vigorously, current will be induced in it.) or.
What is magnetic effect of electric current answer?
Solution: The working principle of electric motor is based on the magnetic effect of current. A current carrying conductor when placed in a magnetic field experiences force and rotates. The direction of the rotation of the conductor can be determined by Fleming’s Left hand rule.
What is magnetic effect of electric current class 10 CBSE?
The magnitude of magnetic field produced by electric current decreases with increase in distance and vice – versa. The size of concentric circles of magnetic field lines increases with distance from the conductor, which shows that magnetic field decreases with distance.
What is magnetic effect of electric current for Class 7?
Answer: When electric current passes through the wire current carrying wire behaves like a magnet. This is called magnetic effect on current.
What is magnetic field Class 10 Ncert?
A magnetic field is represented by a series of lines around a magnet. The path along which north pole moves in a magnetic field is called magnetic lines of force or magnetic field line. They show the direction and strength of magnetic field.
What is the effect of electric current class 10?
Now, according to Ohm’s law, current is inversely proportional to resistance. Thus, the decrease in value of resistance of the circuit raises the current to a significant amount. As a result, the wires become hot and sparks are caused by Joule’s heating effect of current.
Why is magnetic effect of electric current?
Electric current has two effects; heating effect and magnetic effect. This happens because a magnetic field is generated around the wire as electric current passes through a conductive wire. The magnetic field causes the magnetic compass to deflection.