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
Fill in the following blank with suitable words:
If a coil is viewed from one end, and the current flows in a clockwise direction, then this end is a ........... pole.
What is the function of a split ring in an electric motor?
Observe the following diagram and choose the correct alternative:

(c) Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________
Draw a neat labelled diagram to show the magnetic effect of electric current.
Explain the magnetic field created by a current around a conductor from the figure.
What is that instrument which can detect the presence of electric current in a circuit?
A uniform magnetic field exists in the plane of paper pointing from left to right as shown in Figure. In the field an electron and a proton move as shown. The electron and the proton experience

What are MCBs? How do they work?
A wire with green insulation is usually the live wire of an electric supply.
