pulsating

2 generators are connected to the bus below. Given V1 = 300V, 50Hz V2 = 400V, 60Hz When the switch is opened, calculate i) the maximum and minimum voltage across both light 1 and 2. ii) peak voltage across both lights iii) maximum number of light pulsation How do I solve the issue above? Any...

Hi! I have a very old Kavo Brand German made micro motor (probably made around 1970s-80s). It it a very well built tool but the power supply is suffering from some problem. When the brushed motor hand piece is connected and powered on, it will spin but in constant pulses (maybe 1 second on, 1...