Question
What happens to the resistance of a wire if its length
is doubled?Solution
Resistance R ∝ L, where L = length of the wire. Doubling the length doubles the resistance (assuming area and material same). This is used in designing electrical circuits. Thinner and longer wires have more resistance.
The orbital velocity of a satellite depends on:
_________is a formula for rust.
Diamond does not conduct electricity because of which of the following reason?
Which of the following is a water soluble vitamin?
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
Which of the following is used as a moderator in nuclear reactors?
Who measured the velocity of light first?
Sound cannot pass through –
Name the source from which aspirin is produced?
How can a mixture of sand and salt be separated?
