The unit of self inductance of a coil is
1 henry=1 volt/(1 ampere/second)
Coefficient of mutual induction is the ratio of
If a capacitor of capacitance 9.2F has a voltage of 22.5V across it. Calculate the energy of the capacitor.
E = CV2/2
= 9.2 x (22.5)2/2
= 2328.75 J
A solenoid coil has 10 turns per cm along its length and a cross sectional area of 10 cm2. 100 turns of another wire are wound round the first solenoid coaxially. The two coils are electrically insulated from each other. The mutual inductance between the two coils is
n1=10 turns per cm, =1000 turns per metre
n2l=100, A=10 c=0.1 m2, M=μ0n1(n2l) A
If we take the analogy between mechanical motion and electric circuits, then inductance is analogous to
Two pure inductors are connected in series, if their self inductance is L. Find the total inductance
Suppose there are two coils of length 1m with 100 and 200 turns and area of cross section of 5 x 10-3 m2. Find the mutual inductance.
If the current in primary coil changes from 5 A to 2 A in 0.03 sec and the induced e.m.f. is 1000 volts, find the mutual induction
As φ =mi
now take change in flux
we can write it as
dφ/ dt= m Δi/Δt
The mutual induction does not depend on which of the following factors
Inductance is a _______ quantity. Its dimension is ________.