Current Electricity and Electrical InstrumentEasy
Question
A fuse wire with radius 1 mm blows at 1.5 ampere. The radius of the fuse wire of the same material to blow at 3 A will be :
Options
A.31/4 mm
B.41/3 mm
C.31/2 mm
D.21/3 mm
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
In the figure, the potentiometer wire AB of length L and resistance or is joined to the cell D of emf e and internal res...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 Kirchhoff′s first law (Σ i = 0) and second law (Σ iR = ΣE), where the symbols have their usual ...Two similar cells are connected first in series and then in parallel, the ratio of balancing length on the potentiometer...The sensitivity of a potentiometer is increased by...