A platinum wire of diameter 2.9 mm is connected in series to a 50 F capacitor and a 0.00068 H inductor to form an RLC circuit. The resistivity of platinum is 1.1 × 107 m. Calculate the length of the platinum wire when the current is critically damped. An- swer in units of m. A platinum wire of diameter 2.9 mm is connected in series to a 50 F capacitor and a 0.00068 H inductor to form an RLC circuit. The resistivity of platinum is 1.1 × 107 m. Calculate the length of the platinum wire when the current is critically damped. An- swer in units of m.
Explanation / Answer
under critically damped condition theresistance becomes R = Rc = (4 L / C) = ....... from the formula R = l / A solve for the length of the wire