Unit of potential difference is
Volt
Ohm
Ampere
Coulomb
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
The electrical symbol of electric bulb is
The obstruction to the flow of electric current is called
Potential
Charge
Resistance
Potential difference
Which of the following is a best conductor?
Silver
Carbon
Copper
Living plants are
Conductors
Insulators
Semi conductors
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 colour code for neutral wire is
Black or blue
Red or black
Green or yellow
Green or black
Insulators have very high
Resistivity
e.m.f.
Conductivity
