Electrical Knowledge by Sachin Sir

Q) Which of the following devices may be used to provide protection against lightening over voltages ? लाइटनिंग ओव्हरव्होल्टेजपासून संरक्षण देण्यासाठी खालीलपैकी कोणते उपकरण वापरले जाऊ शकते?

Q) which gate used in an inverter

Q) The universal gate is ___________

Q) The field system of an alternator is usually excited at

Q) Alternator operates on the principles of

Q) Which of the following motors is preferred for tape-recorders?

Q) The electric motor used in portable drills is