Magnetic Effect of Current
Magnetic Effect of Current: Overview
This topic covers concepts such as Magnetic Effect of Electric Current, Magnetic Field Due to a Current-Carrying Conductor, Magnetic Field Due to Current through a Straight Conductor, etc.
Important Questions on Magnetic Effect of Current
According to Right-hand thumb rule, the thumb indicates the direction of
The magnet generated by double touch method lasts longer compared to that generated by the single touch method.
Name the method of magnetisation where an iron bar is magnetised by rubbing it with a magnet repeatedly.
(Single touch method/ Double touch method)
Name the alloy of iron, nickel, aluminium and titanium used to make magnet.
Magnetic effect of current was discovered by
Magnetic effect of current was discovered by
Observe the following diagram and state whether the given statement is true or false:
The rule used to determine the direction of current produced in the given instrument is Fleming's Right Hand Rule.
It states to stretch the thumb, the index finger and the middle finger such that they are mutually perpendicular to each other. If thumb indicates the direction of the magnetic field, the index finger indicates the direction of motion of the conductor then the middle finger shows the direction of the induced current.
When electric current is passed through the solenoid, it shows magnetic lines of force similar to a _____.
An _____ current always produces a magnetic field.
Which of the following properties of a proton can change while it moves freely in a magnetic field?
A positively-charged particle (alpha-particle) projected towards the west is deflected towards the north by a magnetic field. The direction of magnetic field is________.
Choose the correct option for a current carrying solenoid,the strength of magnetic field is_________.
A current-carrying conductor when is placed in a magnetic field, it experiences a _____.
A cylindrical current carrying coil is called a _____.
What is the difference between a current carrying solenoid and a bar magnet?
For a current in a long straight solenoid N-pole and S-pole are created at the two ends. Among the following statements, the incorrect statement is
Two current-carrying solenoids exhibit:
Four metal rods are placed, in turn, inside a coil of copper wire.
The table below gives the results of the experiment. Which rod would be the most suitable to use for the case of a coil in a circuit breaker?
| Meta rod | Number of paper clips picket up when there is current in the coil | Number of paper clips still attracted when the current is switched off |
| (a) | ||
| (b) | ||
| (c) | ||
| (d) |
The material of the core of a strong electromagnet is:
Mark the polarities of an electromagnet in the figure.
