If a copper wire is increased to double its length, its resistance will become –

Related MCQs

• If a wire of resistance R is melted and recast to half of its length, then the new resistance of the wire will be -
• A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be –
• Copper wires are generally used for electrical power transmission instead of iron wire because
• Indicate the false statement about the resistance of a wire –
• The device which transfer the signal from low resistance region to high resistance region is –
• Safety fuse wire used in domestic electrical appliances is made of metal of low
• The earth-wire of a cable is connected to –
• Electric current in a metal wire is due to the flow of —
• A fuse wire is made of:
• A wire carrying current is –