Wind is one of the source of electric current. Which energy is used to rotate the blades of windmills?
Kinetic energy
Potential energy
Solar energy
None of these
Which battery is used in motor vehicles and inverters ?
Dry batteries
Disposable batteries
Lead-acid batteries
The potential difference between live wire and the neutral wire is
120v
240v
220v
250v
Living plants are
Conductors
Insulators
Semi conductors
Pick the odd one
Polythene
Rubber
Glass
Iron
Unit of potential difference is
Volt
Ohm
Ampere
Coulomb
The colour of live wire is
Red or brown
Black or blue
Green or yellow
Yellow or Red
The colour code for neutral wire is
Red or black
Green or black
An electric iron consist of a heating filament made of
Magnesium wire
Nichrome wire
Tongs ton wire
Neon wire
The obstruction to the flow of electric current is called
Potential
Charge
Resistance
Potential difference