|
Consider two coils C1 and C2 placed as shown. By varying current i1 in coil C1, we modify the flux not only through C1 but also through coil C2. The change in flux f2 through C2 (due to change in current i1) induces an emf in the coil C2. This emf is called as mutually induced emf and the process is known as mutual induction. f2 µ i1 Þ f2 = M i1
|
|
|
Where M is called as mutual inductance of the pair of coils. The coil C1 in which i varies is often called primary coil and the coil C2 in which the emf is induced is called secondary coil.
induced emf in coil C2 = E2
|
|
The mutual inductance is maximum when the coils arc wound up on the same axis. It is minimized when the axis of coils are perpendicular to each other.
Note down the given points related the mutual inductance:
1. The SI unit of mutual inductance is henry (1H).
2. M depends upon closeness of the two circuits, their sizes and orientations and the number of turns etc.
3. Reciprocity theorem: M21 = M12 = M
e2 = - M(di1/dt) and e1 = - M(di2/dt)
4. A good approach for calculating the mutual inductance of two circuits consists of the following steps:
(a) Assume any one of the circuits as primary (first) and the other as secondary (second).
(b) Suppose a current i1 flows through the primary circuit.
(c) Compute the magnetic field produced by the current i1.
(d) Obtain the magnetic flux .
(e) With the flux known, the mutual inductance can be found from,
Email based Physics assignment help - homework help at Expertsmind
Are you searching physics expert for help with Mutual Inductance questions? Mutual Inductance topic is not easier to learn without external help? We at www.expertsmind.com offer finest service of Physics assignment help and physics homework help. Live tutors are available for 24x7 hours helping students in their Mutual Inductance related problems. We provide step by step Mutual Inductance question's answers with 100% plagiarism free content. We prepare quality content and notes for Mutual Inductance topic under physics theory and study material. These are avail for subscribed users and they can get advantages anytime.
Why Expertsmind for assignment help
- Higher degree holder and experienced experts network
- Punctuality and responsibility of work
- Quality solution with 100% plagiarism free answers
- Time on Delivery
- Privacy of information and details
- Excellence in solving physics queries in excels and word format.
- Best tutoring assistance 24x7 hours