Mark the incorrect statement related to construction and working of a generator

a rectangular coil which is placed between two strong horse-shoe magnets.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

the direction of current is given according to the Flemings right hand rule.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

current produced by the generator is also called as alternating current.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

none

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is A none

When the armature coil ABCD rotates in the magnetic field provided by the strong magnets, it cuts the magnetic lines of forces.
Thus the changing magnetic field produces induced current in the coil. The direction of induced current is determined by the Flemings right hand rule.
The current flows out through the brush B1 in one direction in the first half of the revolution and through the brush B2 in the next half revolution in the reverse direction, this process is repeated.
Therefore, the induced current produced is of alternating nature. Such a current is called as alternating current.
An generator is a rectangular coil which is placed between two strong horse-shoe magnets. Current produced by the generator is also called as alternating current.
Hence all the statement are correct.

Suggest Corrections

Similar questions

Q. Why the current produced by the generator is called an alternating current?

Question 8
Choose the incorrect statement:
(a) Fleming’s right-hand rule is a simple rule to know the direction of induced current
(b) The right-hand thumb rule is used to find the direction of magnetic fields due to current carrying conductors
(c) The difference between the direct and alternating currents is that the direct current always flows in one direction, whereas the alternating current reverses its direction periodically
(d) In India, the AC changes direction after every 1/ 50 second

In the figure given below, a coil is placed between two permanent magnets and it is rotated with the help of an axle, on which two rings R1 and R2 are internally attached. B1 and B2 represents metallic brushes. G represents galvanometer.

The current flowing through the circuit reverses direction periodically, such a current is called alternating current. The current can be made direct by ___.

Q. Describe the construction of direct current dynamo drawing labelled diagram. Explain its working. What is the difference between direct current and alternating current? Explain it.

A current carrying conductor is placed perpendicular to the magnetic field of horse shoe magnet the conductor is displaced upwards what will happen to the displacement of the conductor if (i) current in the conductor is increased (ii) a horse shoe magnet is replaced by another stronger horse shoe magnet and (iii) the length of the conductor is increased

Join BYJU'S Learning Program