Current Electricity and Electrical InstrumentHard
Question
If a current is passed through a spring then the spring will
Options
A.expand
B.compress
C.remains same
D.none of these
Solution
It will compress due to the force of attraction between two adjacent coils carrying current in the same direction
Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
In a potentiometer wire experiment the emf of a battery in the primary circuit is 20V and its internal resistances is 5&...The e.m.f. of a cell is 2.0 volt and the internal resistance is 0.1ohm. It is connected with a resistance of 3.9ohm. The...Find current through the resistance 4Ω if resistance of voltmeter is 4Ω....Two known resistance of $R\Omega$ and $2R\Omega$ and and one unknown resistance $X\Omega$ are connected in a circuit as ...The resistance of a wire is 'R' ohm. If it is melted and stretched to 'n' times its original length, its...