The colour code for neutral wire is
Black or blue
Red or black
Green or yellow
Green or black
The potential difference between live wire and the neutral wire is
120v
240v
220v
250v
Which of the following is a best conductor?
Silver
Carbon
Copper
None of these
Living plants are
Conductors
Insulators
Semi conductors
The colour of live wire is
Red or brown
Yellow or Red
An electric iron consist of a heating filament made of
Magnesium wire
Nichrome wire
Tongs ton wire
Neon wire
Insulators have very high
Resistivity
e.m.f.
Conductivity
Potential difference
The electrical symbol of electric bulb is
Pick the odd one
Polythene
Rubber
Glass
Iron
Unit of potential difference is
Volt
Ohm
Ampere
Coulomb
