General Electrical Knowledge
The power systems and branch circuits are grounded to limit ___________
General Electrical Knowledge When a lightning surge or any fault occurs on the circuit, a high voltage surge is induced in it which can destroy the circuit. The high voltage…
What is the current flow of a 3kW heat strip connected to 120 volts ac power supply?
Solution: Power = E x I I = 3 kW / 120 I = 3000 / 120 = 25 amperes
If the resistance of branch circuit conductor decreases, the circuit current will ___________
General Electrical Knowledge
Pipe electrodes shall have resistance to ground not to exceed ___________ ohms when used alone.
General Electrical Knowledge
Which of the following meter is used to measure resistances in the circuit?
General Electrical Knowledge
Ungrounded ducts or conduits should be sealed before entering buildings.
General Electrical Knowledge