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Find the mutual inductance of two concen...

Find the mutual inductance of two concentric coils of radii `a_(1)` and `a_(2)(a_(1) lt lt a_(2))` if the planes of the coils are same.

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Let a current `i` flows in coil of resius `a_(2)`.
Magnetic field at the centre of the coil `= (mu_(0)i)/(2a_(2))`
flux in smaller coil `phi = (mu_(0)i)/(2a_(2)) pia_(1)^(2)`
or `Mi = (mu_(0)i)/(2a_(2)) pia_(1)^(2)` or `M = (mu_(0)pia_(1)^(2))/(2a_(2))`
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CENGAGE PHYSICS ENGLISH-INDUCTANCE-Exercise 4.1
  1. Figure shows an LCR circuit. When the switch is closed, the currents t...

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  2. It has been proposed to use large inductors as energy storage devices....

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  3. A 1 -k Omega resistor is connected in series with a 10-mH inductor, a ...

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  4. A capacitor with capacitance 6 xx 10^(-5) F is charged by connecting i...

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  5. In the circuit shows in Fig. , E = 10 V, R(1) = 5 Omega, R(2) = 10 Ome...

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  6. In Fig. the switch is closed and steady-state conditions are establish...

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  7. The switch in figure is closed at time t = 0. Find the current in the ...

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  8. AB is a part of circuit. Find the potential difference V(A) - V(B) if ...

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  9. A circuit contains an ideal cell and an inductor with a switch. Initia...

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  10. In the following circuit (Fig.) the switch is closed at t = 0. Find th...

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  11. In a circuit S(1) remains closed for a long time and S(2) remain open....

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  12. At t = 0, switch S is closed (shown in Fig.). After a long time, sudde...

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  13. Which of the two curves shows has lesser time constant.

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  14. Two insulated wires are wound on the same hollow cylinder, s as to fro...

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  15. Find the mutual inductance of two concentric coils of radii a(1) and a...

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  16. Solve problem 19 if the planes of the coils are perpendicular.

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  17. Find the mutual inductance of two concentric coils of radii a(1) and a...

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  18. Figure. shows two concentric coplanar coils with radii a and b(alt lt...

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  19. Figure. shows two concentric coplanar coils with radii a and b(alt lt...

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  20. If the current in the inner loop changes according to I = 2t^(2) (Fig ...

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