Last seen: Jul 17, 2023
Correct answer: (3) Pinus
Step-down transformer (which reduces the voltage).
(i) Galvanometer pointer moves to one side showing that a momentary current is induced in the coil A. (ii) Galvanometer pointer moves to the other s...
(a) Current increased. (b) Current reversed. (c) Current increased. (d) Zero current. (e) Zero current.
Relative motion between the coil and the magnet.
(i) Electromagnetic induction. (ii) The galvanometer gives a reading to the left. (iii) Large deflection to right occurs more quickly.
(a) The galvanometer deflects to the left. (b) The galvanometer deflects to the left. (c) No deflection in galvanometer. The deflection in the g...
(a) If the current flows in one direction only, it is known as direct current; and if the current reverses direction after equal intervals of time, it...
(a) The production of electricity from magnetism is known as electromagnetic induction. Let us move a wire AB upward rapidly between the poles of th...
Construction: A simple AC generator consists of a rectangular coil ABCD which can be rotated rapidly between the poles N and S of a strong horseshoe...
(a) Construction-wise, the only difference between a D.C. generator and an A.C. generator is in the way the two ends of the generator coil are linked ...
(a) Fleming’s right hand rule: Hold the thumb, the fore finger and the centre finger of your right-hand at right angles to one another. Adjust your ha...
The direction of induced current produced in a straight conductor moving in a magnetic field is given by Fleming’s right hand rule. According to Fle...
(a) The difference between AC and DC is that DC flows in one direction only while AC reverses direction after equal intervals of time. (i) DC curren...
(a) Electric generator is based on the principle that when a straight conductor is moved in a magnetic field, then current is induced in the conductor...
Yes, some current will be induced in the coil B because of change in magnetic field through the coil B due to change in current in coil A. This is cal...
A generator with commutator produces direct current.
Electromagnet, permanent magnet, wire carrying current.