Advertisements
Advertisements
प्रश्न
Why are thick copper wires used as connecting wires?
Advertisements
उत्तर
The resistance of connecting wires should be almost negligible. For this thick wires are used . since a thicker wire has a small resistance and the wires are made of copper because the resistivity of copper is low.
संबंधित प्रश्न
How does the resistance of a pure metal change if its temperature decreases?
State how are the two resistors joined with a battery when same current flows in each resistor.
What is the equivalent resistance between A and B in the given circuit (Fig?)
You have three resistors of values 2 `Omega`, 3 `Omega`, and 5 `Omega`. How will you join them so that the total resistance is less than 2 `Omega`?
Bends in a rubber pipe reduce the flow of water through it. How would the bands in a wire affect its electric resistance?
State the effect of rise in temperature on the resistance of semi-conductors.
How does the resistivity of a semiconductor depend on temperature?
Six resistances are connected together as shown in the figure. Calculate the equivalent resistance between points A and B.
Two resistors of 4Ω and 6Ω are connected in parallel to a cell to draw 0.5 A current from the cell.
Draw a labelled circuit diagram showing the above arrangement.
A metal wire of resistance 6 Ω is stretched so that its length is increased to twice its original length. Calculate its new resistance.
