Current Electricity
If the number of valence electrons of an atoms is less than 4,the substance is usually

A semiconductor
An insulator
None of the listed here
A conductor

ANSWER DOWNLOAD EXAMIANS APP

Current Electricity
In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains

Length of heating element should be increased
Length of heating element has no effect on heating if water
None of these
Length of heating element should be decreased

ANSWER DOWNLOAD EXAMIANS APP