The colour of live wire is
Red or brown
Black or blue
Green or yellow
Yellow or Red
Pick the odd one
Polythene
Rubber
Glass
Iron
Which of the following measures the amount of electricity used by us?
Multimeter
Galvanometer
Electro meter
None of these
Which of the following is a best conductor?
Silver
Carbon
Copper
Which of the following is used to close or open a circuit?
Socket
Switch
Plug
The symbol represents a
Open switch
Connecting wire
Closed switch
Cell
The electrical symbol of electric bulb is
Unit of potential difference is
Volt
Ohm
Ampere
Coulomb
Which battery is used in motor vehicles and inverters ?
Dry batteries
Disposable batteries
Lead-acid batteries
The obstruction to the flow of electric current is called
Potential
Charge
Resistance
Potential difference
