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(a) Consider a 5-µH inductor to which a current source i(t) is attached, as shown in Figure (b). Sketch the inductor voltage and stored energy as a function of time.
(b) Let a voltage source v(t) shown in Figure (a) be applied to the 5-µH inductor instead of the current source in part (a). Sketch the inductor current and energy stored as a function of time.
(c) If three identical 5-µH inductors with initial current of 1 mA are connected (i) in series and (ii) in parallel, find the equivalent inductance for each case.
Permanent magnets are made of (A) Soft magnetic materials. (B) Hard magnetic materials. (C) Semi conductors. (D) Super conductors.
Atoms with four valence electrons are good conductors. This statement is true or false. Ans: Atoms are good conductors with four valence electrons. This statement is false.
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