Electricity Tes...

The resistors of resistances $$2 \Omega, 4 \Omega, 5 \Omega$$ are connected in parallel. The total resistance of the combination will be :

Which one of the following is different from the others?

What is one unit of household electrical energy in J?

Four wires are made of same material and have radii (r) and length (l) as given. The wire with least resistance is have

In the network given below, the current flowing through the resistance $$2 R$$ is

The least resistance that can be obtained by combining resistance of $$6 \Omega, 3 \Omega$$ and $$X \Omega$$ is $$1 \Omega$$.
Then $$X$$ is

In case of electronic current the charge flows from negatively charged body to the positively charged body. The body which is at higher potential is 

Energy of the electric current is

A resistance of $$0.01\ \Omega$$ is connected in parallel with a resistance of $$1\ k\Omega$$ The resistance of the combination will be:

A current of $$3\ A$$ flows through a resistance when it is connected across a 12V source. What should the current be if the resistance is increased by $$4\ \Omega$$ and connected across the same voltage source?