Current Electricity and Electrical InstrumentHard
Question
There are two wires of same material but length and diameter of first wire are double of the second wire. Then the resistance of first wire will be :-
Options
A.double of the resistance of the second wire.
B.half of the resistance of the second wire.
C.equal to the resistance of the second wire.
D.fourth times the resistance of the second wire.
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
In the following circuit the current flowing the 1kΩ resistor is :-...The supply voltage to a room is 120V. The resistance of the lead wires is 6Ω. A 60 W bulb is already switched on. W...The resistance between points A and B is...Two nonideal batteries are connected in parallel. Consider the following statements(I) The equivalent emf is smaller tha...A piece of copper and another of germanium are cooled from room temperature to 80 K. The resistance of :...