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Question:

Answers:

Shree_vani

Oracle

Karma Points: 9,262

Date Posted: 7/21/2008 2:09:03 PM Status: Live

Asker's Rating: Helpful

Response:

I) Using the right hand rule, the magnetic fluxs for the given current direction aids, hence mutual voltage and self induced voltages are of same polarity

II) Using the right hand rule, the magnetic fluxs for the given current direction are opposite, mutual voltage and self induced voltages are of opposite polarity.

III ) L = 2H, L₂ = 8H, M=3H

M = K √L₁L₂

K = M / √L₁L₂

K= 3/ √(2)(8) = 3/ √16 = 3/4 = 0.75

In the given circuit the current enters the first & second coil by the dot terminals, hene the sigm of M terms and L terms will be the same

M = K √L₁L₂

M = (0.5) √ (4) (16) = 0.5 ( √64) = (0.5) (8) = 4H

Applying KVL to the loop 1