Which of the following is not a unit of magnetic flux?

A wire of resistance R is stretched to twice its original length. Its new resistance will be:

In which of the following applications is a D.C. series motor invariably used?

Which of the following cannot be solved using Green's theorem?

Which S-matrix properties are satisfied by a 3-port lossy power divider?

A point pole has a strength of 4π × 10^-4 weber. The force in newtons on a pointed pole of 4π × 1.5 × 10^-4 weber placed at a distance of 10 cm from it will be:

Two waves are said to be coherent if they have:

The current in a simple series circuit is 5.0 A. When an additional resistance of 2.0 ohms is inserted, the current drops to 4.0 A. What was the original resistance of the circuit in ohms?

The angle of dip at a location on Earth indicates

To protect a sensitive piece of equipment from an external magnetic field, the best approach is to: