The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is
A. 4 mH
B. 5 mH
C. 6 mH
D. 12 mH
Answer: Option C
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Related Questions on Electromagnetic Induction
A. Self-inductance
B. Mutual inductance
C. Series aiding inductance
D. Capacitance
Which circuit element(s) will oppose the change in circuit current?
A. Resistance only
B. Inductance only
C. Capacitance only
D. Inductance and capacitance
Which of the following circuit elements will oppose the change in circuit current?
A. Capacitance
B. Inductance
C. Resistance
D. All of the above
A. 2.0
B. 1.0
C. 0.5
D. Zero
K=M/√L1L2
M=K×√L1L2
M=0.5×√8×18
M=6
M=L× Sq.Root(M1xM2)
E.g. M=0.5 x Sq.root(8×18)
M=0.5 x 12 ==> 6
M = k * sqrt( L1 * L2),
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