Q. The resistance of a wire is 2 ohms. if the diameter of the wire is reduced to half, keeping the length same, then the resistance of the new wire will be?
Solution:
when the diameter is reduced to half without changing the length the resistance will become four-times so the new resistance will be 8 ohm
Related Questions
Q. Type of microphone which converts acoustic signals to change in capacitance is
View SolutionQ. If the supply frequency to the transformer is increased the iron loss will:
View SolutionQ. Buchholz’s relay gives warning and protection against
View Solution
Get Question Bank
Strengthen Your Practice with our comprehensive question bank.
