1.
Which of the following gas has been used as insulating medium in electrical appliances?
3.
A material through which electric current CANNOT pass easily is a/an ____________________
5.
What is the maximum current level a human can withstand without getting injured?
8.
The greatest root-mean-square (effective) difference of potential between any two conductors of the circuit concerned.
9.
A circuit must have which of the following?
13.
If the voltage is 12 V and the resistance in the wire is 3 Ω, what is the the current in the circuit?
16.
A/An _____________________ is used to turn the electricity in a current on or off
17.
Which type of fire extinguisher(s) is or are also acceptable to put out an electrical fire?
18.
If your heart stops, doctors can start it again by using a
21.
Which of the following is NOT a good insulator?
22.
What is it that flows from a battery to a light?
25.
If the resistance in the circuit is 10 Ω and the current is 3 A, what is the voltage of the battery?