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E = cos(1000t) applied to an LR circuit of a few mH and ohms: maximum current

The same question, asked 2 times: 9 May 2024 S2*, 20 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    9 May 2024 S2

    33
    An e.m.f. E=4cos⁡(1000t)E = 4\cos(1000t) volt is applied to an LR circuit of inductance 3 mH and resistance 4 Ω4\,\Omega. The maximum current in the circuit is

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  2. Question 2

    20 Apr 2026 S2

    139
    In a L-R circuit of 4 mH inductance and 3 Ω3\,\Omega resistance, e.m.f. E=cos⁡(1000t)E = \cos(1000t) V is applied. The amplitude of current is

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