Advertisements
Advertisements
प्रश्न
Will the compass needle show deflection when the switch in the circuit shown by figure is closed?

Advertisements
उत्तर
- No, because there is no source of electric current in this circuit, i.e., there is no battery.
- In the absence of current, the wire does not behave as a magnet, and hence, the compass needle will not show any deflection.
APPEARS IN
संबंधित प्रश्न
Which effect of current can be utilised in detecting a current carrying wire concealed in a wall?
Fill in the following blank with suitable words:
If a coil is viewed from one end and the current flows in an anticlockwise direction, then this end is a ........... pole.
What device reverses the current?
A coil is connected to a galvanometer. When the N-pole of magnet is pushed into the coil, the galvanometer deflected to the right. What deflection, if any, is observed when:
the magnet is a rest in the coil?
(b) State whether the following statements are true or false:
(i) Magnetic poles exist in pairs.
(ii) Global warming is a desirable aspect of the intensified greenhouse effect.
Identify the given figure, write the labels of it.

If the key in the given arrangement is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are ____________.

Magnetic effect of current was discovered by ______.
What do you mean by the magnetic effect?
Sailors use ______ to find direction in order to navigate on the sea.
