Explain the following.
$(a)$ Why are copper and aluminium wires usually employed for electricity transmission?
$(a)$ Why are copper and aluminium wires usually employed for electricity transmission?
(N/A) Copper and aluminium are metals that possess very low electrical resistivity,which means they offer minimal resistance to the flow of electric current.
Because of this property,they act as excellent conductors of electricity.
Consequently,they are widely used in electrical wiring and transmission lines to ensure efficient power delivery with minimal energy loss as heat.
Because of this property,they act as excellent conductors of electricity.
Consequently,they are widely used in electrical wiring and transmission lines to ensure efficient power delivery with minimal energy loss as heat.
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Out of the $114$ elements discovered so far,how many elements do not behave as metals?
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View SolutionYou are given a hammer,a battery,a bulb,wires,and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.
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Group $1$ Group $2$ They cannot be beaten into sheets. They can be beaten into sheets. When one end is in contact with a hot object,the other end does not get hot quickly. When one end is in contact with a hot object,the other end gets hot quickly. They cannot be drawn into thin wires. They can be drawn into thin wires.
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| Group $1$ | Group $2$ |
| They cannot be beaten into sheets. | They can be beaten into sheets. |
| When one end is in contact with a hot object,the other end does not get hot quickly. | When one end is in contact with a hot object,the other end gets hot quickly. |
| They cannot be drawn into thin wires. | They can be drawn into thin wires. |
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