For the following questions answer them individually
How much power (in W) will be dissipated by a 5 Ohm resistor in which the value of current is 2 A?
What is the resistivity (in Ohms-m) of a 2 Ohm cylindrical wire when the length and the diameter of the wire are 10 m and 0.4 m respectively?
Two wires of same resistivity have equal length. The cross sectional area offirst wire is two times to the area of the other. What will be the resistance (in Ohms)of the wire that has a large cross sectional area, if the resistance of the other wire is 20 Ohms?