In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will_____________?
A. increase
B. decrease
C. remain the same
D. initially increase and then decrease
A. increase
B. decrease
C. remain the same
D. initially increase and then decrease
A. Mutual inductance
B. Self inductance
C. Magnetic fields
D. Heating effect
A. effect in charging a capacitor
B. effect in charging a battery
C. effect while passing through an inductance
D. heating effect through a resistance
A. lesser its weber-turns
B. lower the e.m.f. induced
C. greater the flux produced by it
D. longer the delay in establishing steady current through it
A. Decreases the resistance of the solenoid
B. Reduces the effect of eddy current
C. Improves the flux linkage between the turns of the coil
D. Increases the mutual inductance between the solenoid and the core
A. ms-1A
B. ms-2A-1
C. kgms2A-1
D. kgm2s-1A-1
A. self-inductance of two coils only
B. mutual inductance between two coils only
C. mutual inductance and self inductance of two coils
D. none of the above