58 In Fig. 30-47, R₁ = 8.0 2, R₂ = 10 2, L₁ = 0.30 H, L₂= 0.20 H, and the ideal battery has = 6.0 V. (a) Just after switch S is closed, at what rate is the current in inductor 1 changing? (b) When the circuit is in the steady state, what is the current in inductor 1? moor L₁ R₁ R₂ L2 E SOOR 0000 Figure 30-47 Problem 58.

58 In Fig. 30-47, R₁ = 8.0 2, R₂ = 10 2, L₁ = 0.30 H, L₂= 0.20 H, and the ideal battery has = 6.0 V. (a) Just after switch S is closed, at what rate is the current in inductor 1 changing? (b) When the circuit is in the steady state, what is the current in inductor 1? moor L₁ R₁ R₂ L2 E SOOR 0000 Figure 30-47 Problem 58.

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Concept explainers

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

Question

58 In Fig. 30-47, R₁ = 8.0 2, R₂ = 10 2,
L₁ = 0.30 H, L₂ = 0.20 H, and the ideal
battery has = 6.0 V. (a) Just after
switch S is closed, at what rate is the
current in inductor 1 changing? (b)
When the circuit is in the steady state,
what is the current in inductor 1?
oooo
L₁
R₁
R₂
E SOPORD
L2
elle
Figure 30-47 Problem 58.

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