Which of the following measures the amount of electricity used by us?
Multimeter
Galvanometer
Electro meter
None of these
The colour code for neutral wire is
Black or blue
Red or black
Green or yellow
Green or black
The symbol represents a
Open switch
Connecting wire
Closed switch
Cell
Which battery is used in motor vehicles and inverters ?
Dry batteries
Disposable batteries
Lead-acid batteries
Insulators have very high
Resistivity
e.m.f.
Conductivity
Potential difference
Unit of potential difference is
Volt
Ohm
Ampere
Coulomb
The fuse is always connected to the
Neutral wire
Earth wire
Live wire
In electric generator
Solar energy is converted into electric energy
Electric energy is converted into mechanical energy
Mechanical energy is converted into electrical energy
The colour of live wire is
Red or brown
Yellow or Red
The obstruction to the flow of electric current is called
Potential
Charge
Resistance
