Q2. a) Sketch a circuit diagram of a push button direct on line contactor starter for a three phase Incorporating overload and short circuit protection. (8)
b) Indicate, on a sketch of the typical characteristic curves of current and torque against Speed, disadvantages of a direct online start squirrel cage induction motor. (8)
Q2. List at least two factors that cause deterioration of the frequency response of a transistor amplifier. Explain how each factor affects the performance of the amplifier and the portion of the frequency range where it is effective. (16)
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