Current Electricity and Electrical InstrumentHard
Question
The specific resistance of a metal wire is 64 × 10−6 Ω × cm., the length is 198 cm and the resistance is 7Ω. The radius of wire is :
Options
A.2.4 cm
B.0.24 cm
C.0.024 cm
D.24 cm
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
A 25 cm long solenoid has radius 2 cm and 500 total number of turns. It carries a current of 15 A. If it isequivalent to...Two stones are thrown up simultaneously from the edge of a cliff 240 m high with initial speed of 10 m/s and 40 m/s resp...Faraday law of electrolysis indirectly shows...A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) whi...A 3 volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in...