The obstruction to the flow of electric current is called
Potential
Charge
Resistance
Potential difference
Living plants are
Conductors
Insulators
Semi conductors
None of these
Unit of potential difference is
Volt
Ohm
Ampere
Coulomb
The colour code for neutral wire is
Black or blue
Red or black
Green or yellow
Green or black
Which of the following measures the amount of electricity used by us?
Multimeter
Galvanometer
Electro meter
The symbol represents a
Open switch
Connecting wire
Closed switch
Cell
In electric generator
Solar energy is converted into electric energy
Electric energy is converted into mechanical energy
Mechanical energy is converted into electrical energy
Pick the odd one
Polythene
Rubber
Glass
Iron
Which of the following is used to close or open a circuit?
Socket
Switch
Plug
The potential difference between live wire and the neutral wire is
120v
240v
220v
250v
