The product of conductivity and?resistivity of a conductor
1). Depends on pressure applied
2). Depends on current flowing through conductor
3). is the same for all conductors?
4). Varies from conductor to conductor
When you walk on a woolen carpet bring your finger near the metallic handle of a door an electric shock is produced. This is because
1). charge is transferred from your body to the handle
2). ?the temperature of the human body is higher than of the handle
3). A chemical reaction occurs when you touch the hanle
4). The human body and the handle arrive at thermal equilibrium by the process
The unit of electrical power is
1). Volt
2). Watt
3). Kilowatt hour
4). Ampere
?Electricity is produced through dry cell from
1). Chemical energy
2). Thermal energy?
3). Mechanical energy
4). Nuclear energy
A fuse is used in an electric circuit to -
1). Break the circuit when excessive current flows through the circuit
2). Break the circuit when power gets off
3). ?Indicate if the current is flowing uninterrupted
4). Complete the circuit for flow of?current