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Electrical Engineering Switchgear Protections Difficulty: Medium

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A 120 Ω resistor is in parallel with a capacitor with a capacitive reactance of 40 Ω. Both components are across a 12 V ac source. What is the magnitude of the total impedance? When the crystal current diode current is large, the bias is ___________ In a cable, the maximum stress under operating conditions is at A 200 turn coil having an axial length of 30 mm and a radius of 10 mm is pivoted in a magnetic field having a flux density of 0.8 T. If the coil carries a current of 0.5 A, the torque acting on the coil will be [Hint. Torque = 2BIlNr N-m] When a rectifier is loaded which of the following voltage drops take place ?