The colour code for neutral wire is
Black or blue
Red or black
Green or yellow
Green or black
Which of the following is a best conductor?
Silver
Carbon
Copper
None of these
Which of the following measures the amount of electricity used by us?
Multimeter
Galvanometer
Electro meter
The colour of live wire is
Red or brown
Yellow or Red
The potential difference between live wire and the neutral wire is
120v
240v
220v
250v
Which battery is used in motor vehicles and inverters ?
Dry batteries
Disposable batteries
Lead-acid batteries
Which of the following is used to close or open a circuit?
Socket
Switch
Plug
An electric iron consist of a heating filament made of
Magnesium wire
Nichrome wire
Tongs ton wire
Neon wire
Pick the odd one
Polythene
Rubber
Glass
Iron
The obstruction to the flow of electric current is called
Potential
Charge
Resistance
Potential difference
